2 c. mashed, cooked sweet potatoes
1 stick butter, softened
2 egg yolks
1 c. brown sugar
1/4 tsp. salt
1/2 tsp. ginger
1/2 tsp. cinnamon
1/2 tsp. nutmeg
1/2 c. milk
2 egg whites, beaten stiff with 1/4 c. sugar (white)
1 pastry shell

Mix first 6 ingredients. Add milk. Fold in beaten whites. Pour into unbaked pie shell. Bake at 400 degrees for 10 minutes. Reduce heat to 350 degrees and bake until firm. Nutmeg and a little white sugar may be sprinkled on top before baking if desired.