Reserve one cup of the cake mix in a small bowl. Mix together remaining cake mix, melted butter, and 1 egg.

Press into the bottom of a 9x13 pan that has been sprayed with cooking spray. Mix together pumpkin butter, milk, and 2 eggs.

Pour over the crust.

Add the flour, sugar, and butter to the reserved cake mix.

Use a fork or pastry cutter to cut the butter until it resembles small peas.

Sprinkle over the pumpkin butter layer.

Bake in a preheated 350 degree oven for 35 to 40 minutes.

Line the box with parchment paper and add the cooled bars.

Close the box and add the label to close.