Bloom The Gelatin. Pour 1/2 cup of the juice into a liquid measuring cup or small bowl. Sprinkle gelatin powder over the juice and stir to combine. Set aside for about 5 minutes while you heat the juice. The gelatin will thicken up significantly during this time, and should be VERY thick and grainy looking.

Heat The Remaining Juice. While the gelatin blooms, add the remaining 3 1/2 cups of juice to a medium saucepan and heat over medium-high heat until steaming. (It doesn't need to come to a boil or simmer, but should be VERY hot.)

Melt The Bloomed Gelatin. Add honey/sweetener (if using) and the bloomed gelatin to the hot juice and stir to dissolve completely. This is a crucial step, so make sure it's completely dissolved!

Set. Pour gelatin mixture into a 2-quart ceramic pan (8x8, 9x9, or 11x7 works!) or heat proof containers and cover the pan with plastic wrap. Chill at least 3-4 hours or until set completely.

Serve & Store. Enjoy once it's set or store in the refrigerator. My recommendation for the best texture/flavor is to enjoy within 4-5 days, though it usually won't spoil or break down until the 7-10 day mark.