Step 1

To a medium bowl, combine the yogurt, simple syrup, and zest.

Step 2

Add half of the mixed yogurt to a separate bowl and slowly mix in the juice 2 tablespoons at a time.

Step 3

To fill each popsicle mold, alternate adding 2 tablespoons orange yogurt, and vanilla yogurt until filled leaving 1/4-inch from the top empty (for expansion during freezing).

Step 4

Use a butter knife or popsicle stick to gently mix the vanilla yogurt and orange yogurt in each popsicle mold.

Step 5

Insert the popsicle sticks, and freeze for 4 hours, until completely frozen.