Blueberry Crumb Coffee Cake

For Cake:

6 tablespoons softened butter

3/4 cup sugar

2 large eggs

2/3 cup plain sour cream or greek yogurt

1/4 teaspoon lemon zest

1 teaspoon vanilla extract

1 1/4 cups flour

1/4 teaspoon baking soda

1 teaspoon baking powder

1 1/2 cup blueberries

For Crumb Topping:

1/4 cup sugar

1/4 cup brown sugar

1 teaspoon cinnamon

8 tablespoons (1 stick melted butter)

1 1/4 cup flour

Preheat oven to 350 degrees. Butter and flour 9 inch x9 inch square baking pan.

Cream butter and sugar in large bowl until smooth and fluffy. Blend in eggs one at a time then add sour cream or greek yogurt, lemon zest and vanilla. In small bowl sift flour, baking soda and baking powder. Gradually blend the flour mixture into the egg mixture. Gently fold blueberries into batter with spoon until mixed. Pour batter into prepared pan and spread out evenly.

Combine crumb mixture then top evenly over cake batter in prepared pan. Bake for 50 minutes or until a toothpick or knife comes out clean when inserted in middle of cake. Enjoy!!