The sauce can be made in advance and reheated in the microwave. Place it in a 2-cup glass measure; microwave at high 1 minute or until heated, stirring every 30 seconds.
1/3 cup packed brown sugar
2 tablespoons water
1 tablespoon stick margarine
1 1/2 tablespoons all-purpose flour
1 1/4 cups 2% low-fat milk
1/3 cup raisins
1/2 teaspoon rum flavoring
3 cups low-fat vanilla frozen yogurt
How to Make It
Combine first 3 ingredients in a small saucepan over medium heat; cook 3 minutes or until margarine melts, stirring occasionally. Combine flour and milk in a small bowl; stir with a whisk. Add milk mixture and raisins to pan, and stir well. Cook 5 minutes or until thick, stirring constantly. Remove from heat; stir in rum flavoring. Serve over frozen yogurt.