In a small saucepan over medium heat, combine 1 cup of fresh orange juice and 1/2 cup of sugar. Stir continuously until the sugar dissolves completely, which should take about 3-5 minutes. Once the mixture is hot but not boiling, sprinkle in 2 tablespoons of unflavored gelatin and stir until fully dissolved.

Carefully pour the orange gelatin mixture into individual molds or jars. Allow them to cool to room temperature, which usually takes about 15-20 minutes. Once cooled, transfer the molds to the refrigerator and let the jelly set for at least 2 hours.

While the orange jelly is setting, use another saucepan to gently heat 1 cup of heavy cream over low heat. Add 1 teaspoon of vanilla extract. Gradually stir in 2 tablespoons of gelatin until completely dissolved.

Once the orange jelly has set firmly, carefully pour the cooled vanilla cream layer over the top. Ensure it spreads evenly.

After chilling, remove the Dreamsicle Jelly from the fridge. Gently run a knife around the edges of the jelly if needed and invert onto a plate.