Soft, buttery coffee cake with a cinnamon-streusel topping and tender crumb. Perfect for breakfast, brunch, or a cozy afternoon treat.
Cake Batter:
1/2 cup unsalted butter, softened
3/4 cup sugar
2 large eggs
1 cup sour cream
2 tsp vanilla extract
1½ cups all-purpose flour
1½ tsp baking powder
1/2 tsp baking soda
1/4 tsp salt
Streusel Topping:
1/2 cup brown sugar
1 tbsp cinnamon
1/3 cup all-purpose flour
1/4 cup melted butter
(Optional) 1/4 cup chopped nuts
Preheat oven to 350°F. Grease an 8×8-inch pan.
Mix streusel topping ingredients in a small bowl. Set aside.
In a large bowl, cream butter and sugar. Add eggs, sour cream, and vanilla.
Whisk dry ingredients in a separate bowl.
Add dry mix to wet and stir until just combined.
Spread half the batter in the pan, sprinkle half the streusel, repeat.
Bake 35–40 mins. Cool slightly before slicing.
Double the streusel for extra crumb topping.
Add fruit or nuts for variation.
Store at room temp or freeze for later.