Classic Crumb Cake Recipe for a 9x9 Pan

Crumb cake is a beloved dessert that combines a tender, moist cake base with a crunchy, buttery streusel topping. Perfect for breakfast, brunch, or dessert, this classic recipe yields a comforting treat that’s easy to make and sure to impress. Its balanced sweetness and satisfying texture make it a favorite among crumb cake lovers.

Ingredients

1 cup (120g) all-purpose flour
1/2 cup (100g) granulated sugar
1/2 teaspoon baking powder
1/4 teaspoon salt
1/2 cup (115g) unsalted butter, cold and cubed
1 large egg
1 teaspoon vanilla extract
1/2 cup (120ml) whole milk
For the streusel topping:
1/2 cup (60g) all-purpose flour
1/2 cup (100g) packed light brown sugar
1/4 teaspoon ground cinnamon (optional)
1/4 teaspoon salt
1/4 cup (60g) unsalted butter, cold and cubed

Instructions

Preheat your oven to 350°F (175°C). Grease a 9×9-inch baking pan and set aside.
Make the crumb topping: In a medium bowl, combine 1/2 cup flour, brown sugar, cinnamon (if using), and salt. Add the cold cubed butter and use a pastry cutter or fingertips to work the butter into the dry ingredients until the mixture resembles coarse crumbs. Set aside.

Prepare the cake batter: In a large bowl, whisk together 1 cup flour, sugar, baking powder, and salt. In a separate bowl, whisk together the egg, vanilla, milk, and melted butter. Pour the wet ingredients into the dry and stir until just combined; do not overmix.
Assemble the cake: Pour the batter into the prepared pan and spread evenly. Sprinkle the crumb topping over the batter, covering it completely.
Bake: Place in the preheated oven and bake for 35-40 minutes, or until a toothpick inserted into the center comes out clean. Rotate the pan halfway through baking for even browning.

Cool: Allow the crumb cake to cool in the pan for about 15 minutes. Transfer to a wire rack and let it cool completely before slicing.

Tips

Substitutions: You can substitute buttermilk for the milk for a richer flavor or use gluten-free flour blends if needed. For a dairy-free version, replace butter with coconut oil or dairy-free margarine.
Storage: Keep the crumb cake in an airtight container at room temperature for up to 2 days, or refrigerate for up to 5 days. To maintain freshness, reheat slices in the microwave for about 15-20 seconds before serving.

Common mistakes: Avoid overmixing the batter, which can make the cake dense. Ensure the butter for the streusel is cold to achieve a crisp topping. Do not skip cooling the cake before slicing to help it set properly.
Additional tips: For extra flavor, add lemon zest to the batter or a splash of almond extract in the topping. Using a light touch when working with the streusel prevents it from becoming greasy.

Serving Suggestions

Serve slices of crumb cake on their own for a simple treat, or pair them with a dollop of whipped cream or a scoop of vanilla ice cream for added indulgence. Fresh berries or a drizzle of fruit compote also complement the rich, buttery flavors.

Variations

Blueberry Crumb Cake: Fold 1 cup of fresh or frozen blueberries into the batter before baking for a fruity twist.
Cinnamon Roll Crumb Cake: Swirl a cinnamon-sugar mixture into the batter before topping with the streusel for a cinnamon roll-inspired flavor.
Chocolate Chip Crumb Cake: Add 1/2 cup of chocolate chips to the batter for a chocolaty variation.

Gluten-Free Crumb Cake: Use a gluten-free flour blend in place of all-purpose flour, adjusting the liquid if needed.

Storage and Reheating

Store the crumb cake at room temperature in an airtight container for up to 2 days. For longer storage, refrigerate for up to 5 days. To reheat, microwave a slice for 15-20 seconds until warm, or reheat in a 350°F (175°C) oven for about 10 minutes to restore freshness. If freezing, wrap slices tightly in plastic wrap and foil, and freeze for up to 3 months. Thaw at room temperature or reheat directly from frozen.

Frequently Asked Questions

Can I make this crumb cake ahead of time?

Yes, you can prepare the cake a day in advance. Store it in an airtight container at room temperature or refrigerated, depending on your preference. To keep the crumb topping crisp, add it just before serving or briefly reheat the cake in a low oven.

Can I use margarine instead of butter?

Absolutely. Margarine can be substituted for butter in both the cake and crumb topping. Use the same amount, but note that the flavor and texture may vary slightly from the original recipe.

Is this crumb cake suitable for freezing?

Yes, once cooled completely, wrap individual slices tightly in plastic wrap and store in an airtight container or freezer bag. Freeze for up to 3 months. To serve, thaw at room temperature or reheat in the oven for a few minutes for a fresh taste.

Can I add fruit or nuts to this recipe?

Definitely. Fresh or frozen berries, chopped nuts, or even shredded coconut can be added to the batter or sprinkled on top before baking to customize your crumb cake.

How do I prevent the streusel from becoming greasy?

Ensure the butter for the streusel is cold and work it quickly into the dry ingredients. Avoid overmixing, which can cause the butter to melt and create a greasy texture. Chilling the assembled topping briefly before baking can also help.

What makes a crumb cake different from a coffee cake?

While the terms are often used interchangeably, crumb cake typically emphasizes the crumb topping as the main feature, with a simple cake base. Coffee cake usually includes swirls or layers of cinnamon or fruit and is served with coffee. Both share similar textures and flavors, but crumb cake is more focused on the crunchy topping.

Classic Crumb Cake Recipe for a 9×9 Pan