Buttery Brown Sugar Crumb Cake with Generous Crumb Topping

The cake in crumb cake is secondary — the real star is the crumb. A great crumb topping is buttery, brown-sugar sweet, and generously piled on. That’s what gives this cake its texture, flavor, and irresistible appeal.

Streuselkuchen. That’s the original German name for crumb cake. This buttery cake topped with streusel has its roots in Germany, where bakers traditionally used a yeast dough and often aimed for a roughly equal balance between cake and crumb. In the United States, yeast dough is less common for this style, but the 50/50 cake-to-crumb ratio has endured — and for good reason.

If anything, you can argue for even more crumb than cake. A crumb-heavy topping adds contrast: tender cake beneath and crisp, buttery streusel above.

What makes a good crumb cake

• Plenty of crumb. Aim for a generous topping — at least half the volume of the cake layer, if not more.
• Salt. Don’t skip it. A pinch of salt in both cake and crumb highlights sweetness and deepens flavor.
• Crumb size is flexible. You can make large, cookie-sized chunks by squeezing the streusel together as you drop it on the batter, or break the topping into a finer, looser crumble for a delicate finish.
• Room-temperature butter and eggs. Using ingredients at room temperature helps create a smooth batter and captures air for a light, even crumb in the cake layer.
• Whipped cream for silkiness. Folding a small amount of whipped cream into the batter just before baking introduces extra air and yields a fine, silky cake texture. Even 1/4 cup, whipped to soft peaks and gently folded in, makes a noticeable difference.

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This is breakfast food, people

This cake is perfect any time of day, but it’s especially suited to mornings. It fits the informal category we call “coffee cake” — a sweet cake that feels justified at breakfast alongside coffee or tea. Whether you call it coffee cake or simply crumb cake, it’s a delicious way to start the day.

More morning pastry recipes you might like

• Mixed Berry Muffins
• Cinnamon Streusel Mini-Muffins
• Homemade Overnight Caramel Rolls
• Homemade Overnight Cinnamon Rolls

Tools I used for this recipe

• Standing mixer (shown: a typical stand mixer)
• 9-inch or square baking pan (a square baking dish works well)

If you try this recipe, please leave a comment or share a photo on social media — I’d love to see your crumb creations.

Happy baking!

📖 Recipe

Brown Sugar New York Style Crumb Cake

Yield:
9 slices of cake

Prep Time:
30 minutes

Cook Time:
1 hour 15 minutes

Total Time:
1 hour 45 minutes

Ingredients

For the Crumb Topping:

• 1 2/3 cup (160 g) all-purpose flour
• 1/3 cup (66 g) granulated sugar
• 1/3 cup (71 g) dark brown sugar
• 3/4 teaspoon salt
• 3/4 teaspoon ground cinnamon
• 1/2 teaspoon ground nutmeg
• 10 tablespoons (141 g) salted butter, melted

For the Cake:

• 1 cup (120 g) all-purpose flour
• 1 tablespoon (7 g) cornstarch
• 3/4 teaspoon salt
• 1/2 teaspoon ground nutmeg
• 3/4 cup (12 tablespoons or 6 oz) unsalted butter, at room temperature
• 3/4 cup (150 g) granulated sugar
• 3 tablespoons (40 g) dark brown sugar
• 2 teaspoons pure vanilla extract
• 1 teaspoon almond extract
• 2 large eggs plus 1 large egg yolk, at room temperature
• 1/4 cup (57 g) heavy whipping cream, cold

Instructions

Prepare the crumb topping:

1. Combine the flour, granulated sugar, dark brown sugar, salt, cinnamon, and nutmeg in a bowl and mix to blend. Pour in the melted butter and stir until all dry ingredients are moistened. Cover and set aside while you make the cake.

Make the cake:

1. Preheat the oven to 325°F (163°C). Grease a 9-inch square baking pan with butter or shortening, then dust with flour, shaking out any excess so the bottom and sides are evenly coated.
2. Whisk together the flour, cornstarch, salt, and nutmeg in a bowl and set aside.
3. In the bowl of a stand mixer fitted with the paddle attachment, combine the room-temperature butter with both sugars. Beat on medium-low just to combine, then increase to high and beat for about 5 minutes, stopping occasionally to scrape down the bowl.
4. Add the vanilla and almond extracts and mix to incorporate.
5. Add the eggs and extra yolk one at a time, beating on medium-low just until each is incorporated.
6. Add the dry ingredients and beat on low speed just until blended. Do not overmix.
7. Using a handheld mixer, whip the cold heavy cream until soft peaks form. Gently fold the whipped cream into the batter, keeping the mixture light.
8. Pour the batter into the prepared pan and smooth the top into an even layer.
9. Distribute the crumb topping evenly over the batter. For large, chunky crumbs, squeeze the streusel together as you add it to the cake; for a finer topping, break it into smaller pieces as you sprinkle it on.
10. Bake for 70–75 minutes, until a toothpick inserted into the center comes out without raw batter clinging to it.
11. Allow the cake to cool completely on a wire rack before slicing and serving.

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