Rhubarb Sponge Pie - cooking recipe

Ingredients

1 c. sugar
2 egg yolks
1/4 c. butter
2 Tbsp. flour (heaping)
2 egg whites (stiff)
1 c. rhubarb
1 (9-inch) unbaked pie shell

Preparation

Mix together sugar, egg yolks, butter and flour.
Fold in egg whites.
In a nine-inch pie plate, place unbaked pie shell. Spread rhubarb on bottom.
Pour mixture over rhubarb.
Bake at 350\u00b0 until almost done.
Then turn to 375\u00b0 to brown.