1 pkg (26.5-oz)cinnamon streusel coffee cake mix
3 large eggs
1 cup sour cream
1/3 cup butter, softened
1/4 cup water
1 tsp vanilla extract
8 (1.4-oz) chocolate-covered toffee bars, chopped
1 cup chopped pecans, toasted
1/3 cup uncooked regular oats
Preheat oven to 350 degrees. Grease and flour a 13 x 9-inch pan; set aside.
In a large mixing bowl at low speed of an electric mixer, beat together the coffee cake mix, eggs, sour cream, butter, water, and vanilla for 1 minute or just until the dry ingredients are moistened. Beat at medium speed for 2 minutes. Spread half the batter into the prepared pan. Combine the streusel packet, candy, pecans, and oats; sprinkle half of the mixture over the batter in the pan. Dollop then spread the remaining batter over the stuesel layer. Sprinkle with the remaining struesel. Bake at 350 degrees for 40 minutes. Cool in the pan on a wire rack. Drizzle the glaze packet over the top of the cake.