Pink Grapefruit Tart Frozen Yogurt

2-1/2 Cups Fage 0% Plain Greek Yogurt
1 Cup Fat Free Grass Fed Buttermilk
1 Cup Freshly Squeezed Pink Grapefruit Juice (2 Pink Grapefruits Chilled)
1/2 Cup Sugar (taste it as you add the sugar, thats the great thing about making your own, you can control the sugar)

1. Freshly squeeze the pink grapefruits and pour juice through a fine mesh sieve.

2. Mix all the ingredients together in a large bowl and pour into your ice cream maker and follow manufacturers instructions. I used my KitchenAid Ice Cream Maker on speed two for 20 minutes.