Mix in saucepan and heat slightly to combine:
Let cool while making crust.
In a medium sized bowl, put the following ingredients together:
I use my hands to combine this, Its a bit messy, but it combines the butter and other ingredients the best.
Pat half of the crust into a square pan. Spread prune mixture on top. Then sprinkle the remainder of the crust on top, and pat smooth. Bake in preheated over at 350° for 20-25 minutes.