Rhubarb Custard Pie - cooking recipe

Ingredients

1 c. rhubarb, cut fine
1 c. sugar
1 Tbsp. flour
1 c. milk
2 egg yolks, beaten
1/2 tsp. vanilla
1 Tbsp. butter

Preparation

Combine all together.
Pour in unbaked pie shell.
Bake at 350\u00b0.
Later cover with egg whites.