Coffee Cake

Ingredients

• 1 cup brown sugar 
• 1 teaspoon butter 
• 4  eggs 
• 2 teaspoons ground cinnamon 
• 3.5 ounce vanilla pudding mix instant
• 1 cup milk 
• 1 teaspoon vanilla extract 
• 0.8 cup vegetable oil 
• 1 cup walnuts chopped
• 18.3 ounce duncan hines classic decadent cake mix yellow

Equipment

• bowl
• oven
• toothpicks
• casserole dish

Directions

1. Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9x13-inch casserole dish.
2. Mix yellow cake mix, vanilla pudding mix, milk, vegetable oil, eggs, butter, and vanilla extract together in a bowl.
3. Pour half the batter into the prepared casserole dish; spread evenly.
4. Stir brown sugar, walnuts, and cinnamon together in a bowl; sprinkle over batter in the casserole dish.
5. Pour remaining batter over walnut mixture.
6. Bake in the preheated oven until a toothpick inserted in the center of the cake comes out clean, about 40 minutes.