Lightly spray crockpot sleeve with cooking spray.

Pour both cans of peach pie filling into crockpot sleeve.

Empty box of cake mix over pie filling. Mix well.

Place pieces of butter all over cake mix pie filling.

I place paper towels over the crockpot then place lid on crockpot. (This will prevent any condensation from dripping back onto cake.) Cook for 2 or 2 1/2 hours until cake pulls away for edge of crockpot. I like to serve with ice cream.