8x8 Coffee Cake Recipe with Cinnamon Streusel Topping

Classic coffee cake is a tender, buttery cake topped with a crunchy cinnamon streusel that pairs perfectly with your morning brew or afternoon tea. This 8×8 coffee cake recipe is simple to make and yields a moist, flavorful cake that’s just the right size for a small gathering or family treat.

Ingredients

1 cup (125g) all-purpose flour
½ cup (100g) granulated sugar
½ teaspoon baking powder
¼ teaspoon baking soda
¼ teaspoon salt
½ cup (115g) unsalted butter, melted and slightly cooled
1 large egg
½ cup (120ml) sour cream or plain Greek yogurt
1 teaspoon vanilla extract
For the streusel topping:
½ cup (60g) all-purpose flour
⅓ cup (65g) brown sugar, packed
1 teaspoon ground cinnamon
3 tablespoons (43g) unsalted butter, cold and cut into small cubes
Optional: ¼ cup chopped nuts (walnuts or pecans)

Instructions

Preheat your oven to 350°F (175°C). Lightly grease or line an 8×8-inch square baking pan with parchment paper, leaving an overhang for easy removal.

In a medium bowl, whisk together the flour, sugar, baking powder, baking soda, and salt until combined.
In another bowl, whisk the melted butter, egg, sour cream (or yogurt), and vanilla extract until smooth and fully blended.
Pour the wet ingredients into the dry ingredients and gently fold together with a spatula until just combined. Do not overmix; a few lumps are okay.

Spread the batter evenly into the prepared baking pan, smoothing the top with a spatula.
To make the streusel topping: In a small bowl, combine flour, brown sugar, and cinnamon. Add the cold butter cubes and use a pastry cutter, two forks, or your fingers to work the butter into the dry ingredients until the mixture resembles coarse crumbs. Stir in nuts if using.
Sprinkle the streusel evenly over the cake batter in the pan.

Bake in the preheated oven for 30 to 35 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs but no wet batter.
Allow the coffee cake to cool completely in the pan on a wire rack before slicing into squares and serving.

Tips

Substitution: Sour cream can be swapped for plain Greek yogurt or buttermilk for a tangy, moist crumb.

Butter temperature: Use melted but cooled butter for the batter, but keep the butter cold for the streusel topping to get that perfect crumbly texture.
Don’t overmix: Overmixing the batter develops gluten and will result in a dense coffee cake rather than a tender one.
Check doneness early: Oven temperatures vary, so start checking for doneness at 28 minutes to avoid overbaking and dryness.

Serving Suggestions

This coffee cake is delicious served warm or at room temperature. Pair it with a hot cup of coffee, tea, or even a latte for a classic breakfast or snack. For a richer experience, add a dollop of whipped cream or a drizzle of vanilla glaze on top. It’s also great alongside fresh berries or a fruit compote to balance the sweetness.

Variations

You can customize this coffee cake easily. Add ½ cup of fresh or frozen blueberries or chopped apples to the batter for a fruity twist. Swap the cinnamon in the streusel for pumpkin pie spice in fall, or add a handful of mini chocolate chips for a sweeter version. For a nut-free option, omit the nuts in the streusel and increase the cinnamon slightly for extra flavor.

Storage and Reheating

Store leftover coffee cake covered tightly at room temperature for up to 2 days. For longer storage, wrap well and refrigerate for up to 5 days or freeze for up to 3 months. To reheat, warm individual slices in the microwave for 15-20 seconds or in a 300°F (150°C) oven for 10 minutes until warmed through. Avoid overheating to prevent drying out.

Frequently Asked Questions

Can I double this recipe for a larger pan?
Yes, you can double all the ingredients and bake in a 9×13-inch pan. The baking time will increase to about 40-45 minutes, so keep an eye on it and test for doneness with a toothpick.

What makes coffee cake different from regular cake?
Coffee cake typically features a tender crumb with a crumbly streusel topping, often flavored with cinnamon and nuts. It’s designed to be enjoyed alongside coffee or tea, usually without frosting.

Can I make this gluten-free?
Yes, substitute the all-purpose flour with a 1-to-1 gluten-free baking flour blend that contains xanthan gum. The texture may be slightly different but still delicious.

Why is my coffee cake dense or dry?
Overmixing the batter or overbaking are the most common reasons for a dense or dry coffee cake. Mix just until combined and check the cake a few minutes before the recommended baking time.

Can I prepare the streusel topping ahead of time?
Absolutely. You can make the streusel a day ahead and keep it refrigerated in an airtight container. Bring it back to room temperature before sprinkling on the batter to help it bake evenly.

Is it okay to use oil instead of butter?
Butter adds flavor and richness, especially in the streusel, so it’s preferred. However, you can substitute melted neutral oil (like vegetable or canola) in the batter, but keep the butter in the topping for the best texture.

Can I add a glaze or frosting?
While traditional coffee cake is served without frosting, a simple vanilla glaze made from powdered sugar and milk can add extra sweetness and moisture if you prefer.

This 8×8 coffee cake recipe balances simplicity and flavor, making it a reliable choice for any occasion where you want a homemade baked good without fuss. The tender crumb and crunchy cinnamon streusel are crowd-pleasers that will become a staple in your baking repertoire.

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