pumpkin bars

• 1 (18 ounce) box yellow cake mix
• 1/2 cup butter, melted
• 13 ounces pumpkin butter (specifically 1 13-oz. jar of pumpkin pecan butter)
• 3 eggs
• 1 tablespoon flour
• 1/4 cup sugar
• 1/4 cup butter, softened
• 3 tablespoons milk
• 1 teaspoon cinnamon  

1. Preheat oven to 350.
2. 2
   Reserve 1 cup of cake mix and set aside.
3. 3
   Mix remaining cake with with 1/2 cup melted butter and 1 egg. Press mixture lightly into the bottom of a 13" x 9" baking dish.
4. 4
   Mix one jar of pumpkin pecan butter with remaining two eggs and milk, and pour over cake mixture in pan.
5. 5
   Mix remaining 1 cup cake mix with flour, sugar, remaining 1/4 cup butter, and cinnamon, and crumble over the top of the pumpkin layer.
6. 6
   Bake 35-40 minutes, or until golden.
7. 7
   Cool to room temp and serve.