Classic Crumb Cake Recipe for a 9x13 Pan

Crumb cake is a beloved dessert that combines a tender, moist cake base with a generous, crunchy streusel topping. Perfect for breakfast, brunch, or a sweet afternoon treat, this classic recipe yields a rich yet balanced flavor that everyone will enjoy. Its straightforward preparation makes it a go-to recipe for both beginner and experienced bakers alike.

Ingredients

2 cups all-purpose flour
1 cup granulated sugar
1/2 cup unsalted butter (cold)
1/2 cup sour cream
3 large eggs
1 teaspoon vanilla extract
1 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
Powdered sugar (for dusting, optional)

Instructions

Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan and set aside.
In a large mixing bowl, whisk together the flour, sugar, baking powder, baking soda, and salt until well combined.

Cut the cold butter into small pieces and add to the dry ingredients. Using a pastry cutter or your fingertips, work the butter into the mixture until it resembles coarse crumbs. Set aside about 1 cup of this crumb mixture for the topping.
In a separate bowl, whisk together the eggs, sour cream, and vanilla extract until smooth.
Pour the wet ingredients into the dry ingredients and gently fold until just combined. Do not overmix, as this can make the cake dense.

Pour the batter into the prepared pan, spreading it evenly with a spatula.
In a small bowl, combine the reserved crumb mixture with a tablespoon of flour and a tablespoon of sugar. Using a fork or your fingers, mix in the remaining cold butter until the mixture forms coarse crumbs. Sprinkle this generously over the batter in the pan.
Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out clean.

Remove from oven and allow to cool in the pan for about 15 minutes. Transfer to a wire rack and let it cool completely before dusting with powdered sugar or serving.

Tips

Substitutions: You can substitute sour cream with Greek yogurt or buttermilk for a similar tangy flavor. For a dairy-free version, use coconut oil and dairy-free yogurt.
Storage: Keep leftover crumb cake in an airtight container at room temperature for up to 2 days or in the refrigerator for up to 5 days. To freeze, wrap tightly and store for up to 3 months.

Preventing a soggy crumb topping: Make sure the butter is cold when mixing into the crumbs to achieve a crisp, crunchy topping. Avoid overloading the topping with too much butter or sugar.
Even baking: Rotate the pan halfway through baking if your oven has hot spots to ensure even browning.

Serving Suggestions

Serve the crumb cake slightly warm or at room temperature. It pairs beautifully with a cup of coffee or tea, and a dollop of whipped cream or a scoop of vanilla ice cream can elevate it further for dessert. For a more decadent presentation, dust with a light coating of powdered sugar just before serving.

Variations

Apple Crumb Cake: Fold in 1 cup of diced, peeled apples into the batter before baking. Top with extra streusel for added texture.
Cinnamon Streusel: Mix 1 teaspoon ground cinnamon into the crumb topping for a warm, spicy flavor.
Chocolate Chip Crumb Cake: Add 1 cup of semi-sweet chocolate chips to the batter for a chocolate twist.

Nutty Crumb Cake: Incorporate 1/2 cup chopped walnuts or pecans into the crumb topping for extra crunch.

Storage and Reheating

Store leftover crumb cake in an airtight container at room temperature for up to 2 days or refrigerated for up to 5 days. For longer storage, wrap tightly in plastic wrap or foil and freeze for up to 3 months. To reheat, warm slices in the microwave for 20-30 seconds or in a 350°F (175°C) oven for about 10 minutes. Reheating helps restore the cake’s moistness and crispness of the topping.

Frequently Asked Questions

Can I make this crumb cake gluten-free?

Yes, substitute the all-purpose flour with a gluten-free baking flour blend. Ensure the blend contains xanthan gum or add a teaspoon to help with structure. Keep in mind that texture might vary slightly.

Is sour cream necessary for this recipe?

Sour cream adds moisture and tanginess to the cake, but you can substitute it with Greek yogurt or buttermilk if needed. These alternatives will produce similar results in moisture and tenderness.

Can I prepare the crumb topping ahead of time?

Absolutely. Prepare the crumb mixture, cover tightly, and refrigerate for up to 24 hours. When ready to bake, sprinkle it over the batter and proceed as directed. Just ensure the topping is cold when adding to the cake for best crunch.

What makes the crumb topping crunchy?

The key is using cold butter and working it into the dry ingredients until coarse crumbs form. Baking at the right temperature also helps achieve a crisp, golden topping. Avoid overmixing or adding too much butter, which can make the topping greasy instead of crunchy.

Can I make this recipe dairy-free?

Yes, substitute butter with coconut oil or dairy-free margarine, and use plant-based yogurt or sour cream alternatives. The texture may vary slightly, but the flavor remains delicious.

How can I prevent the bottom from becoming soggy?

Ensure the batter is evenly spread and avoid overloading the topping. Using a light coating of flour in the crumb mixture helps it stay crisp, and baking at the correct temperature allows moisture to evaporate properly, preventing sogginess.

Classic Crumb Cake Recipe for a 9×13 Pan