Streusel-Filled Coffee Cake Recipe

Directions:

1. Preheat oven to 375. In a large mixing bowl, sift together the flour, baking powder, salt and sugar. Cut in the butter until the mixture is like fine cornmeal. In a small bowl, beat the egg with the milk and vanilla. Blend into the dry ingredients and stir just until the dry ingredients are incorporated into the mixture.
2. For the filling: In a medium bowl mix the sugar, flour and cinnamon together. Blend in the melted butter and nuts. Mix well.
3. Spoon half the batter into a greased and floured 8-inch square baking dish. Sprinkle with half the streusel mixture. Spoon the remaining batter over the top of the the streusel, gently smooth it out, then top with remaining streusel. Bake at 375 for 20 - 30 minutes, or the unbaked cake can be covered with plastic wrap and refrigerated overnight if you want to bake it in the morning. Remember to bring it out of the fridge and back to room temp before baking, or reduce heat to 350 and bake an extra 15 minutes if it goes into the oven cold.