Cupboard Coffee Cake | Oklahoma State University

Ingredients

• 1/2 cup brown sugar
• 1/4 cup butter, melted
• 1/4 cup all-purpose flour
• 1/4 cup old-fashioned, quick oats or nuts
• 1 teaspoon ground spice or combination of spices
• 1/2 teaspoon salt
• 1-1/2 cups all-purpose flour
• 1 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 cup butter, room temperature
• 1/2 cup granulated sugar
• 2 eggs
• 2 teaspoons vanilla extract
• 2/3 cup sour cream, plain yogurt or buttermilk
• 1 teaspoon citrus zest
• 1/2 cup fresh, thawed frozen or canned fruit, drained