Buttery Black Walnut Coffee Cake | Just A Pinch Recipes

Ingredients

• 1/3 cup(s) butter, softened
• 3/4 cup(s) sugar
• 2 large eggs
• 1 teaspoon(s) pure vanilla extract
• 1 1/2 cup(s) all purpose flour
• 3 teaspoon(s) baking powder
• 1/2 teaspoon(s) salt
• 1/2 cup(s) sour cream
• ## TOPPING & FILLING
• 1/4 cup(s) brown sugar
• 1/4 cup(s) white sugar
• 1/2 cup(s) flour
• 1 teaspoon(s) cinnamon
• 1/4 cup(s) (1/2) stick butter cut into small cubes
• 1/2 cup(s) black walnuts