Open the box of cake mix and set aside one cup of mix.
Combine the remaining cake mix, 1/2 cup butter, and 1 egg and mix together in a mixer.
Press this mixture lightly unto the bottom of an 8 inch casserole pan.
Then mix together the remaining 2 eggs, Pecan Pumpkin Butter, and milk and pour this over the cake.
Make sure to spread this out evenly.
Finally combine the reserved cake mix with the flour and cinnamon and 1/4 cup butter.
Crumble this over the the liquid layer.
Pop this in the oven at 350 for 35-40 minutes.
Then voila! You have just made an instant favorite
Notes
This recipe is adapted from Williams-Sonoma's Pumpkin Dessert Squares. I tend to double this recipe when I make it and serve it in a 9 x 13 inch pan. Serve with fresh whip cream or vanilla ice cream.