Blueberry Sauce
["1/3 c. sugar", "1 1/2 Tbsp. plain flour", "1/4 tsp. salt", "1 c. hot water", "1 Tbsp. lemon juice", "1 c. fresh or frozen (thawed and drained) blueberries", "2 Tbsp. butter, softened"]
["Combine sugar, flour and salt in microwave-proof bowl or 4-quart measure.", "Gradually add hot water and lemon juice.", "Cook, stopping to stir, until smooth and thickened.", "Stir in blueberries and cook 1 to 2 minutes longer.", "Remove from microwave.", "Stir in butter until melted.", "Serve warm or cold over ice cream, cake or cheese cake."]
["sugar", "flour", "salt", "water", "lemon juice", "blueberries", "butter"]