01 - Pour 1/2 cup of the fruit juice into a medium saucepan. Sprinkle the gelatin powder evenly over the surface and allow it to bloom for 5 minutes until slightly thickened.
02 - Place the saucepan over low heat and stir constantly until the gelatin dissolves completely. Do not allow the mixture to boil.
03 - Remove from heat. Add the remaining fruit juice, collagen peptides, honey or maple syrup if using, and lemon juice. Whisk vigorously until the collagen is fully dissolved and the mixture is smooth.
04 - If using diced fresh fruit, gently fold the pieces into the mixture until evenly distributed.
05 - Pour the mixture into silicone molds or a parchment-lined 8x8-inch baking dish, filling evenly.
06 - Refrigerate for at least 2 hours or until the jellies are fully firm and set.
07 - If using a baking dish, cut the jelly into small cubes. Pop the jellies out of the silicone molds and serve immediately or store for later.