Ingredients
1/2 cup butter-flavored shortening1 cup sugar2 large eggs, room temperature1 teaspoon vanilla extract2 cups all-purpose flour1 teaspoon baking powder1 teaspoon baking soda1/2 teaspoon salt1 cup sour cream1-3/4 to 2 cups chopped peeled tart applesTOPPING:3/4 cup packed brown sugar1 teaspoon ground cinnamon2 tablespoons cold butter1/2 cup chopped walnuts
Preparation
In a large bowl, cream shortening and sugar until light and fluffy. Beat in eggs and vanilla. Combine the flour, baking powder, baking soda and salt; gradually add to creamed mixture alternately with sour cream, mixing well after each addition. Stir in apples. Transfer to two greased 8-in. square baking dishes.
For topping, combine brown sugar and cinnamon. Cut in butter until crumbly. Stir in nuts; sprinkle over batter. Bake at 350° until a toothpick inserted in the center comes out clean, 30-35 minutes. Serve warm or cool completely before serving.