Mix the pumpkin, milk, eggs, sugar and pumpkin pie spice in a bowl with a whisk
1 15 oz can pumpkin puree, 1 12 oz can evaporated milk, 3 eggs, 1 cup brown sugar, 3 tsp pumpkin pie spice
Pour the pumpkin pie filling into a greased 9x13 baking pan.
Sprinkle yellow cake mix evenly over the top.
1 15.25 oz box yellow cake mix
Pour melted butter over the cake mix.
1 cup butter
Bake at 350° for 45-50 minutes, until center is set and a toothpick comes out clean
Optional Frosting Glaze
Mix the powdered sugar, milk and vanilla in a bowl with a whisk until smooth. Pour over the top of the cake while it's still warm. Let it cool and harden to a sweet crackled glaze on the top.
Add chopped nuts or toffee bits to the top of the cake for a nice crunch.Skip the glaze and serve with vanilla ice cream or whipped cream instead!NOTE: As of 2025, Duncan Hines brand yellow cake mix is still 15.25oz, but Betty Crocker and most generic brands are down to 13 oz. It won't make a huge difference, but if you want the full amount of topping, be sure to check your box sizes. I now keep an extra box of white or yellow cake mix in the pantry to add to smaller box mixes so my recipes will still turn out properly.