This delightful coffee cake has a lightly crunchy topping and a lovely filling of nuts, brown sugar and cinnamon. It tastes delicious.—Valma Devall, Kennewick, Washington
In a large bowl, cream butter and sugar. Beat in eggs and vanilla. Combine the flour, baking powder and baking soda; add to creamed mixture alternately with sour cream. Pour half of the batter into a greased 13x9-in. baking pan.
Combine filling ingredients; sprinkle over batter. Carefully top with remaining batter. For topping, combine the flour, sugars and cinnamon in a bowl; cut in butter until crumbly. Stir in walnuts. Sprinkle over batter.
Bake at 350° for 45-50 minutes or until a toothpick inserted in the center comes out clean. Cool on a wire rack. Combine icing ingredients; drizzle over coffee cake.
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