Learn how to make homemade rainbow jimmies, confetti, nonpareils, sanding sugar, and sugar pearls in all of your favorite custom colors!
2–2/3 cups powdered sugar
2 tablespoons meringue powder
¼ cup water, plus more as needed
Vanilla extract, if desired
Gel food coloring
Combine the powdered sugar, meringue powder, and water in a large bowl or the bowl of a stand mixer. Beat on medium speed using the whisk attachment until thickened to stiff peaks, about 5 minutes. If your mixture is too thick and clumps, add water a teaspoon at a time until you’re about to beat it. Once stiff, color the icing with food coloring as desired. Keep in mind, it’s easier to add more but you can take it out if you add too much! Whisk to combine and begin to make your sprinkles.
For homemade jimmies: Transfer the icing to a piping bag fitted with a number 2 tip. Pipe straight lines onto a baking sheet prepared with a piece of wax or parchment paper. Allow to dry completely overnight and then cut or crumble into your preferred size pieces. Store in an airtight container until ready to use!
For flaky confetti sprinkles: Prepare a sheet pan with a piece of parchment or wax paper. Use an offset spatula to smear a super thin layer of the icing on top of it. Once completely dried (preferably overnight) crumble into flaky bits and store in an airtight container.