01 - Pour 1½ cups of the fruit juice into a medium saucepan. Sprinkle the gelatin evenly over the juice and let it bloom for 5 minutes.
02 - Gently heat the mixture on low, stirring constantly, until the gelatin dissolves completely. Do not boil.
03 - Remove from heat. Stir in the remaining ½ cup cold juice and honey or maple syrup, if using. Let the mixture cool to lukewarm temperature.
04 - Once cooled below 100°F, whisk in the probiotic yogurt or probiotic powder until fully incorporated.
05 - Pour the mixture into silicone molds or a glass baking dish. Refrigerate for at least 2 hours, or until fully set.
06 - Unmold or slice into cubes. Keep refrigerated until ready to serve.