"tart and tangy key lime pie frozen yogurt..."
INGREDIENTS
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2 cups nonfat Greek vanilla yogurt (I use chobani)
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1/2 cup lite coconut milk
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2-3 key limes, juiced (add more to taste)
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1/2 tsp lime zest,
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2-3 tbsp agave nectar
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graham cracker crumbs for topping