Rhubarb Custard Pie - cooking recipe

Ingredients

1 egg, slightly beaten
1 c. sugar
3 Tbsp. flour
1/2 c. water
1 Tbsp. butter or margarine
3 c. rhubarb, cut in 1/2-inch pieces
1 unbaked pie shell

Preparation

Mix all ingredients, except rhubarb, and let stand while preparing the crust. Pour mixture over rhubarb in shell.
Bake 45 minutes at 375\u00b0 or until done.