If you like the flavor of the cinnamon roll like snack cakes, you are going to love this honey bun cake. It has cinnamon, brown sugar, and moist cake all in one tasty package.
In a large bowl beat together cake mix, oil, eggs, and sour cream on medium speed for 2 minutes.
Spread half of the batter on the bottom of the prepared pan.
Stir together cinnamon and brown sugar. Sprinkle over batter in pan.
Carefully pour and spread remaining batter over the brown sugar mixture.
Bake for 28-32 minutes.
In a small bowl, stir together powdered sugar, milk, and vanilla. Add more milk, a teaspoon at a time, until it reaches a drizzling consistency. Drizzle over warm cake.
Let cool then serve.
Store covered at room temperature.
Notes
You can add chopped pecans to the cinnamon and sugar mixture if you would like. For a thicker cake, double the ingredients. It will still fit in a 9x13-inch cake pan, though not a shallower casserole. The temperature should be reduced to 300℉ and the bake time should be increased to 55-60 minutes.Store the cake covered at room temperature for up to 4 days. Freeze for longer storage.