White Sauce
["2 Tbsp. butter or margarine", "2 Tbsp. flour", "1/4 tsp. salt", "1 c. milk"]
["Melt the butter or margarine over low heat.", "Blend in 2 tablespoons flour and 1/4 teaspoon salt.", "Heat until mixture bubbles.", "Remove from heat.", "Add gradually, stirring in 1 cup milk.", "Cook rapidly, stirring constantly, until sauce thickens. Cook 2 minutes longer.", "Makes 1 cup."]
["butter", "flour", "salt", "milk"]