Apple Coffee Cake With Crumble Topping
1/2 cup unsalted butter 1 cup packed light brown sugar 2 large eggs 2 cups all-purpose flour 1 teaspoon baking soda 1 teaspoon ground cinnamon 1/2 teaspoon salt 1 cup plain yogurt or sour cream 1 teaspoon pure vanilla extract 3 cups peeled cored and chopped apples (Ida Red will work well here for a …
