Sweet Potato Pie - cooking recipe

Ingredients

2 c. cooked mashed sweet potatoes
1/2 c. butter
2 egg yolks
1 c. brown sugar
1/4 tsp. salt
1/2 tsp. cinnamon, nutmeg and ginger
1/2 c. milk
2 egg whites
1/4 c. sugar
1 (9-inch) pie shell

Preparation

Mix first 8 ingredients while potatoes are still warm.
Add milk.
Beat egg whites until stiff.
Gradually add sugar, fold into potato mix.
Pour into unbaked shell.
Bake at 400\u00b0 for 10 minutes then lower to 350\u00b0 and bake until set.