Basic Cream Sauce In Vegetables
["1/2 c. unsalted butter or margarine", "1/2 c. flour", "1/2 tsp. salt", "3 1/4 c. milk"]
["Melt butter in a 2-quart measuring cup on High for 30 seconds to 1 minute.", "Stir in flour and salt.", "Microwave on High for 30 seconds.", "Slowly stir in milk.", "Microwave on High for 6 to 8 minutes, stirring several times.", "Sauce should boil and thicken. Pour into 1-cup freezer-safe containers.", "Seal, label and freeze. May be frozen up to 3 months."]
["unsalted butter", "flour", "salt", "milk"]