Grandma White'S Rhubarb Custard Pie
["2 eggs, separated", "1/2 c. sugar (up to 1 c.)", "2 Tbsp. oil", "2 Tbsp. canned milk", "2 c. rhubarb", "2 Tbsp. sugar", "1/2 tsp. vanilla"]
["Cream together egg yolks with next 3 ingredients. Pour over rhubarb in pastry shell and bake 30 to 40 minutes at 350\u00b0.", "Make meringue of egg whites, 2 tablespoons sugar and vanilla.", "Top pie and bake at 425\u00b0 until lightly browned."]
["eggs", "sugar", "oil", "milk", "rhubarb", "sugar", "vanilla"]