Bananas Foster Shake

I am working on perfecting a low-point Bananas Foster Shake. Currently, my version is almost identical:

Blend together 1 frozen banana, 1 cup fat-free vanilla frozen yogurt, 2 cups cold skim milk, 1 tsp rum extract, 1 TBSP Hershey's Caramel Sundae Topping (fat-free) and 2-4 ice cubes. Garnish with a sprinkle of Cinnamon or Nutmeg.

I do not have the ingredients on hand and will edit this post when I actually try this recipe. This modified recipe serves 4 and is 2.5/serving. I intend to add my "flavorless" protein powder to the mix, once I have a recipe that is low in points and delicious.