Homestyle Crumb Cake

This Classic Crumb Cake recipe is not just buttery and moist; it’s a celebration of rich cinnamon flavor, guaranteed to bring warmth and comfort to any occasion. Renowned for being practically fail-proof, it’s a timeless treat that every home baker can master.

The Ultimate Moist Old-Fashioned Crumb Cake Recipe

There’s nothing quite like a homemade crumb cake to brighten your morning or sweeten an afternoon coffee break. If you’ve ever yearned for a coffee cake that delivers on both exceptional moisture and an irresistibly crunchy, buttery crumb topping, then look no further. This recipe is inspired by the culinary wisdom found in Martha Stewart’s Baking Handbook, a true treasure trove for any baking enthusiast. Every page in this book seems to hold a promise of deliciousness, and this Classic Crumb Cake was at the top of my list to try – and it did not disappoint.

Many crumb cakes can be disappointingly dry, leaving you wishing for more. This recipe, however, stands out from the crowd thanks to a secret ingredient: sour cream. The addition of full-fat sour cream works wonders, ensuring the cake base is incredibly tender, rich, and moist, making every bite a delight. Paired with a generous crumb topping that’s crisp, buttery, and bursting with cinnamon-sugar goodness, it truly achieves crumb cake perfection. Whether you’re serving it for breakfast, brunch, or as a delightful dessert, this cake is destined to become a staple in your baking repertoire.

For an authentic and robust flavor, I highly recommend using a high-quality cinnamon. My personal favorite for this recipe is Penzey’s Vietnamese Cassia Cinnamon. Known for its intense and potent aroma, it’s often considered among the strongest cinnamons available. While Penzey’s suggests using two-thirds the amount called for in recipes due to its strength, I wholeheartedly embraced the full measure in this crumb cake. The assertive cinnamon flavor beautifully complements the sweetness and richness of both the cake and its topping. Regardless of the type of cinnamon you choose, always take a moment to smell it before baking. If it lacks a strong, fragrant scent, it might be past its prime. Cinnamon, like many spices, loses its potency over time, so if you don’t bake frequently, it might be time to refresh your spice cabinet for the best possible results.

Essential Ingredients for Your Crumb Cake

One of the beauties of this classic crumb cake recipe lies in its simplicity. The ingredient list is straightforward, emphasizing the importance of choosing high-quality components. Investing in good butter, fresh cinnamon, and pure vanilla extract will significantly elevate the overall flavor profile of your cake, transforming it from good to truly extraordinary. Remember, fresh ingredients are the foundation of exceptional baking!

For the Irresistible Crumb Topping:

• All-purpose flour – Provides the structure for the perfect crumb.
• Light brown sugar – Adds a deep, caramel-like sweetness and helps create that moist, clumpy texture.
• Ground cinnamon – The star spice, offering warm and aromatic notes.
• Coarse salt – A small but mighty ingredient that balances the sweetness and enhances all the flavors.
• Unsalted butter – Crucial for creating a rich, flaky crumb. It should be softened just enough to incorporate easily, but not so soft that it’s greasy.

For the Moist and Tender Cake Base:

• Butter – Like the topping, use good quality unsalted butter. Ensure it’s softened to room temperature for proper creaming. (For tips, see: How to Soften Butter.)
• All-purpose flour – For the best and most consistent results, measure your flour by weight using a kitchen scale.
• Baking powder – A leavening agent that helps the cake rise.
• Baking soda – Another leavener, activated by the acidity in the sour cream, contributing to the cake’s tender texture.
• Salt – Essential for balancing flavors and enhancing the sweetness of the cake.
• Granulated sugar – Sweetens the cake and helps create a fine crumb structure.
• Eggs – Act as a binder, add richness, and contribute to the cake’s structure. Make sure they are at room temperature for optimal emulsification.
• Sour cream – The secret to this cake’s incredible moisture and tender crumb. Use full-fat sour cream and ensure it’s at room temperature for smooth incorporation into the batter. Setting it out with your butter and eggs about 30 minutes before you start baking is ideal.
• Vanilla extract – Opt for pure vanilla extract to add a warm, aromatic depth to the cake.

Mastering the Classic Crumb Cake: A Step-by-Step Guide

This recipe, famously dubbed “fool-proof” by Martha Stewart, lives up to its name. Even novice bakers can achieve spectacular results with this straightforward method. Follow these steps carefully, and you’ll be rewarded with a delicious crumb cake every time!

1. Prepare the Crumb Topping: In a medium mixing bowl, combine the all-purpose flour, light brown sugar, ground cinnamon, and coarse salt. Whisk these dry ingredients together until well combined. Next, add the softened butter. Using a pastry blender, your fingertips, or a fork, work the butter into the dry mixture until it forms beautiful, large, moist clumps. Avoid over-mixing; you want distinct crumbs, not a paste. Once mixed, transfer the crumb topping to the refrigerator. Chilling the topping helps it maintain its shape and prevents it from melting too quickly in the oven, ensuring those desirable distinct crumbs.

2. Get Ready to Bake: Preheat your oven to a steady 350°F (175°C). Prepare a 9” x 13” x 2″ baking pan. You can either butter the pan thoroughly or line it with parchment paper, making sure to butter the paper and any exposed edges or corners of the pan. This step is crucial for easy cake removal and a clean finish.

3. Mix the Dry Ingredients: In a separate medium-sized mixing bowl, whisk together the measured all-purpose flour, baking powder, baking soda, and salt. Ensure these ingredients are thoroughly combined so they are evenly distributed throughout the cake batter, which will contribute to a consistent rise and texture. Set this mixture aside for a moment.

4. Combine the Wet Ingredients: In a large mixing bowl, using an electric mixer set to medium speed, beat the softened butter and granulated sugar together. Cream them until the mixture becomes visibly light, fluffy, and pale in color – this typically takes about 2-3 minutes and is crucial for a tender cake. Next, add the eggs, one at a time, beating well after each addition to ensure they are fully incorporated. Finally, beat in the vanilla extract until just combined, infusing the batter with its fragrant aroma.

5. Integrate Wet and Dry Mixtures: Reduce your mixer speed to low. Gradually add the dry flour mixture (from Step 3) to the wet ingredients, alternating with the room temperature sour cream. Begin and end with the flour mixture. Mix just until the ingredients are combined and no streaks of flour remain. Be careful not to overmix the batter at this stage, as overmixing can lead to a tough cake.

6. Assemble the Cake: Pour the luscious cake batter evenly into your prepared 9×13 inch baking pan. Use a spatula to gently spread it into a smooth, level layer. Now, retrieve your chilled crumb topping from the refrigerator. Evenly sprinkle the large, moist clumps of the crumb topping over the entire surface of the cake batter. Don’t press the crumbs down; let them rest lightly on top.

7. Bake and Cool: Carefully place the baking pan into your preheated oven. Bake for approximately 35 to 40 minutes, or until a wooden pick or skewer inserted into the center of the cake comes out clean. This indicates the cake is fully cooked through. Once baked, remove the cake from the oven and place it on a wire rack to cool completely in the pan. Cooling racks are indispensable for proper air circulation and preventing a soggy bottom. (Learn more: Why Every Baker Needs Wire Cooling Racks.) Once cooled, slice and serve. For an extra touch of elegance and sweetness, you can dust the top of the cake with confectioners’ sugar before serving, if desired.

Expert Tips for Crumb Cake Perfection

Achieving the perfect crumb cake is easy with this recipe, but a few insider tips can elevate your results from good to absolutely amazing. Here are some essential pointers to ensure your classic crumb cake is a resounding success every single time:

• Don’t Over-mix the Crumbs: When making the crumb topping, resist the urge to over-mix. If the butter becomes too warm or the mixture is overworked, the butter will fully incorporate, resulting in a topping that melts and bakes into a solid, cookie-like layer instead of distinct, crumbly goodness. Aim for visible clumps of butter coated in the flour mixture.
• Choosing the Right Pan Matters: The type of baking pan you use can significantly impact your cake’s texture and color. Dark-colored metal pans tend to absorb more heat, which can lead to over-browning or a slightly drier crust on the bottom and sides of your cake. For an evenly baked, golden-brown crumb cake, I highly recommend using a lighter-colored metal baking pan. (For more details, explore: How to Choose Baking Pans.)
• Room Temperature Ingredients are Key: This is a golden rule in baking! Ensure your butter, eggs, and sour cream are all at room temperature. This allows them to emulsify properly, creating a smoother, more uniform batter and a finer crumb texture in your finished cake. Cold ingredients can lead to a lumpy batter and a denser, less tender cake.
• Measuring Flour Accurately: For optimal results, measure your all-purpose flour by weight using a digital kitchen scale. If you don’t have a scale, use the “spoon and level” method: lightly spoon flour into your measuring cup until it’s overflowing, then level it off with the straight edge of a knife. Never scoop flour directly from the bag, as this can compact it and lead to using too much, resulting in a dry cake.
• Substituting Yogurt for Sour Cream: If you find yourself without sour cream, full-fat plain yogurt can be a fantastic substitute! It provides a similar tang and moisture content, contributing to a wonderfully tender crumb. Ensure it’s full-fat for the best texture and richness.
• Don’t Overbake: Keep a close eye on your cake as it bakes. Overbaking is the quickest way to dry out any cake, especially a crumb cake. Start checking for doneness at the lower end of the suggested baking time. A clean toothpick inserted into the center is your reliable indicator.
• Cooling Completely: Although tempting, allowing the cake to cool completely on a wire rack is essential. This allows the cake’s structure to set, prevents it from becoming gummy, and ensures the crumb topping remains crisp. Cutting into a hot cake can cause it to crumble and lose moisture prematurely.

Proper Storage for Maximum Freshness

To maintain the delightful moisture and flavor of your classic crumb cake, proper storage is key. Once completely cooled, store your crumb cake in an airtight container at room temperature. This method will keep it fresh and delicious for 3 to 4 days. Avoid refrigeration if possible, as it can sometimes dry out the cake and alter the texture of the crumb topping.

Can This Classic Crumb Cake Be Frozen?

Absolutely! This classic crumb cake freezes beautifully, making it perfect for meal prep or enjoying a homemade treat whenever a craving strikes. For best results, allow the cake to cool completely before freezing. You can freeze an entire cake by wrapping it tightly in several layers of plastic wrap, followed by a layer of aluminum foil, to prevent freezer burn. Alternatively, wrap individual slices, or place any portion of the cake in an airtight, freezer-safe storage container. It will keep well in the freezer for up to 3 months. When you’re ready to enjoy, simply thaw the cake at room temperature for a few hours before serving. This ensures it retains its moist texture and delicious crumb.

Get the Recipe:

Martha’s Classic Crumb Cake

Yield
24 servings

Prep Time
25 minutes

Cook Time
40 minutes

Total Time
1 hour 5 minutes

This Classic Crumb Cake, inspired by Martha Stewart, is the ultimate treat! It features a super-moist, tender vanilla cake base perfectly complemented by a rich, buttery cinnamon-sugar crumb topping. Wonderfully fail-proof and easy to make, it’s ideal for breakfast, a comforting brunch, or a delightful dessert any time of day!

Ingredients

For the crumb topping:

• 3 cups (360g) all-purpose flour
• 1 cup (200g) firmly packed light brown sugar
• 1 tablespoon ground cinnamon
• 1 & 1/2 teaspoons coarse salt
• 1 & 3/4 cups (396g) unsalted butter, softened

For the cake:

• 10 tablespoons (141g) butter, softened
• 2 & 1/2 cups (300g) all-purpose flour
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1 cup (200g) granulated sugar
• 3 large eggs
• 1 & 1/4 cups (282g) sour cream
• 1 teaspoon vanilla extract

Instructions

To make the crumb topping:

1. Combine the flour, brown sugar, cinnamon, and salt in a bowl.
2. Add the softened butter, and mix with a pastry blender or a fork until large, moist clumps form. Refrigerate while you prepare the cake.

To make the cake:

1. Preheat oven to 350°F (175°C). Butter a 9″ x 13″ x 2″ pan, or line with parchment paper and butter the paper.
2. Whisk together the flour, baking powder, baking soda, and salt in a medium bowl. Set aside.
3. Using an electric mixer on medium speed, beat the softened butter and sugar until light and fluffy. Add the eggs one at a time, mixing well after each. Stir in the vanilla extract.
4. Reduce mixer speed to low. Gradually add the flour mixture and the sour cream, mixing just until blended and no dry streaks remain.
5. Spread the cake batter evenly into the prepared pan. Evenly sprinkle the chilled crumb topping over the top of the batter.
6. Bake for 35 to 40 minutes, or until a pick inserted into the center comes out clean. Cool the cake completely in the pan on a wire rack. Dust with confectioners’ sugar before serving, if desired.

Notes

This recipe is slightly adapted from Martha Stewart’s Baking Handbook, known for its reliable and delicious classic bakes. Ensure all cold ingredients (butter, eggs, sour cream) are at room temperature before you start mixing for the best cake texture.

Recommended Products

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• OXO 9 x 13 Inch Baking Pan
• Martha Stewart’s Baking Handbook

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