Sweet Potato Crust

Ingredients:
1 c sifted flour
1 tsp baking powder
1/2 tsp salt
1 c mashed sweet potatoes
1/3 c melted butter
1 egg, well beaten

Directions:
Combine flour, baking powder and salt; sift once. Work in mashed sweet potatoes, melted butter and egg. Roll 1/4 inch thick and use as cover for chicken or meat deep-dish pie.