Purple Cow Frozen Yogurt

Ingredients

• 2 cups plain 0% fat Greek yogurt, such as Fage
• 1 cup plain 2% fat Greek yogurt, such as Fage
• 1/2 cup + 1 Tbsp evaporated cane juice (or granulated sugar), divided
• 1 tsp pure vanilla extract
• 12 oz blackberries (about 1 1/2 cups)
• 4 oz raspberries (about 1/2 cup)
• 4 oz dark chocolate, chips or chopped, (about 1/2 cup)
• 4 oz white chocolate, chips or chopped, (about 1/2 cup)