In a medium bowl, combine the lime gelatin with the boiling water. Stir well until the gelatin is completely dissolved no grainy bits left behind. This step is important for a smooth, clear layer.
Once dissolved, add the cold water and stir to combine. Set the mixture aside and allow it to cool to room temperature. You don’t want it hot when layering, or it will melt the whipped cream later.Helpful tip: If you’re short on time, place the bowl on the counter and give it a quick stir every few minutes to help it cool evenly. Pour a thin layer of gelatin into the bottom of each parfait glass. You don’t need much just enough to cover the base.
Place the glasses in the refrigerator and chill for 20–30 minutes. You’re looking for a “set but wobbly” texture. It should hold its shape but still jiggle slightly when moved.This step helps keep your layers clean and pretty. In a mixing bowl, add the heavy whipping cream and powdered sugar. Using a hand mixer or stand mixer, beat until soft peaks form.Soft peaks mean the cream holds its shape but still looks fluffy and smooth not stiff or grainy.Tip from experience: Stop mixing as soon as you reach soft peaks. Overmixing can turn whipped cream into butter faster than you’d think. Once the gelatin layer is set, spoon or pipe a layer of whipped cream on top.
Repeat the process: Add another layer of gelatin, chill briefly if needed, add another layer of whipped cream
Continue until the glasses are filled, finishing with whipped cream on top.There’s no need to be perfect here. Slightly uneven layers still look charming and homemade. Top each parfait with green sprinkles, a little lime zest, or crushed green candy. This is where you can really have fun and let the kids add their own flair.
Serve chilled and enjoy!