ISO: chinese chews

My mother worked for as a cook in a school room cafeteria many years ago. She used to make these bars referred to as chinese chews for us but has lost the recipe over the years. We know that the recipe calls for butter, raisins, coconut flakes and powdered sugar, but can not remember the exact recipe. Again, this was a recipe from the school cafeteria. We lived in Texas when she worked at the school.. HELP!! I would like to make them for my kids.

Thank you, Christina