Crumb Coffee Cake (Microwave Cookbook)

Cake:

• ¼ cup butter
• 1 cup flour
• 1 t baking powder
• ½ cup sugar
• 1 egg
• ½ cup sour cream
• 1 t vanilla

Crumb Topping:

• ¼ cup butter, softened
• ½ cup flour
• 1/3 cup brown sugar
• ½ teaspoon cinnamon
• Chopped walnuts

Soften 1 stick butter 20 seconds in microwave. Beat sugar and ¼ cup butter until fluffy. Beat in the egg. Beat in the sour cream and vanilla. Fold in the flour and baking powder until well blended. Spread the batter evenly into a 8 ½ inch round cake dish. Cook on medium (8) for 6 minutes. Meanwhile, make the topping. Cut the flour, brown sugar, and cinnamon into the remaining butter. Stir in the nuts. Sprinkle the topping over the cake and cook on high for 2 to 4 minutes. Let stand 5 to 10 minutes.