2 lbs. sweet potatoes, cooked and mashed (3 c.)
3 tbsp. butter
3/4 c. milk
Few grains pepper
2 eggs, separated
1/4 tsp. salt

Whip together sweet potatoes, butter, milk and pepper. Beat in egg yolks. Whip egg whites with salt until stiff; fold into sweet potato mixture. Pile into buttered 1 1/2 quart casserole. Bake at 375 degrees for 30 minutes, or until puffed and top surface is lightly browned. Makes 4-6 servings.