OPTIONAL STEP: I CHOSE TO MAKE 2 SEPERATE BATCHES OF NUT TOPPING. I ADDED 1/2 OF THE FIRST BATCH TO THE CAKE BATTER. Then I poured only half of the cake batter into the pan, then topped it with the remaining other half of the nut topping. Then poured the remaining cake batter on top, smoothed it over the first layer and then made a second nut topping & sprinkled it over the top of the coffee cake, and baked as directed. This step Added some EXTRA CRUNCH AND TOASTED NUTS TO THE CAKE.