Prepare a square baking dish (8 or 9 inches) with oil/spray or parchment paper. I like parchment because it is easy to lift out after it cools.
Put all ingredients into a pot and bring to a boil, constantly whisking to avoid the agar agar from clumping. About 3-5 minutes.
4 cups juice of choice, 3-4 teaspoons agar agar powder, ¼ cup tablespoons sweetener
Once it is boiling, allow it to boil for about 2 minutes and remove from heat.
Pour into the prepared baking dish and put in the fridge to set. It takes about 2 hours for it to be fully set and ready to eat.
Serve!
Notes
The more vibrant your juice is, the more vibrant the end result will be. You can also use 2-3 drops of food coloring if you really want a bright color.
Agar agar is the vegan substitute for gelatin. If you are using the flakes and not the powder, you will need about twice as much. This isn’t exact so you may need to experiment with the texture you prefer.
You can do half water if you prefer, this method is used online a lot but it does end up with a less vibrant color and flavor. I experimented a lot with this and I did not prefer the water/juice combo. Our preference was all juice with 4 teaspoons agar for a firmer result.
If you prefer a softer texture, then reduce the agar agar to 1 ½- 2 teaspoons.
If your juice isn’t sweet enough you can add in a sweetener of choice like maple, honey (not vegan) or choice of sugar.
Make sure to store in the fridge, it melts at room temp.