A soft, buttery coffee cake filled with juicy blueberries and topped with a golden cinnamon streusel. Moist, flavorful, and perfect for any time of day.
Cake:
1½ cups all-purpose flour
1 tsp baking powder
½ tsp baking soda
¼ tsp salt
½ cup unsalted butter, room temp
¾ cup granulated sugar
2 large eggs
1 tsp vanilla extract
½ cup sour cream or Greek yogurt
¼ cup milk
1 cup blueberries
1 tsp flour (for tossing berries)
Streusel Topping:
⅓ cup flour
¼ cup brown sugar
½ tsp cinnamon
3 tbsp cold butter, cubed
Preheat oven to 350°F. Grease and line an 8×8-inch pan.
Mix streusel topping and refrigerate.
In one bowl, whisk dry ingredients.
In another bowl, cream butter and sugar. Add eggs, vanilla, sour cream, and milk.
Combine wet and dry ingredients. Fold in floured blueberries.
Spread batter into pan and top with streusel.
Bake 35–42 minutes, or until a toothpick comes out clean. Cool and serve.
Can be made with fresh or frozen blueberries.
Add lemon zest for a citrus twist.
Store at room temperature up to 3 days or freeze for 2 months.