Ingredients
1/2 cup butter, softened1/2 cup plus 1 tablespoon sugar, divided2 eggs1 teaspoon vanilla extract1 cup all-purpose flour1 teaspoon baking powder1/4 teaspoon salt3 cups sliced fresh or frozen plums (about 1-3/4 pounds fresh)1/4 teaspoon ground cinnamonTOPPING:1/2 cup all-purpose flour1/4 cup sugar1/4 cup cold butter, cubed3 tablespoons chopped walnuts, optional
Preparation
In a large bowl, cream butter and 1/2 cup sugar until light and fluffy. Add eggs, one at a time, beating well after each addition. Beat in vanilla. Combine the flour, baking powder and salt; add to creamed mixture and mix well.
Transfer to a greased 9-in. square baking dish. Top with plums. Combine cinnamon and remaining sugar; sprinkle over plums.
For topping, in a small bowl, combine flour and sugar; cut in butter until mixture resembles coarse crumbs. Stir in walnuts if desired. Sprinkle over top.
Bake at 350° for 50-55 minutes or until topping is golden brown and plums are tender. Cool on a wire rack.
