1-First, beat the 1 cup (226g) unsalted butter on medium speed for 1 minute until it’s smooth and creamy. This step helps create a solid base for the flavors to blend.

2-Next, add the zest of 1 small lime (about 2 teaspoons or 4g), 1 teaspoon (4g) vanilla extract, and 1/4 teaspoon (1g) fine salt, mixing on low speed until everything is combined evenly.

3-Gradually incorporate the 3 1/2 cups (454g) powdered sugar and 1 tablespoon (15g) fresh lime juice on low speed, scraping the bowl as needed to avoid lumps. If the mixture seems too thick, adjust by adding lime juice 1 teaspoon at a time, or if it’s too thin, add powdered sugar a quarter-cup at a time until you reach the desired consistency. For the best results, use fresh lime juice and zest, and fine zesting with a microplane to prevent any clogging in your piping tips.

4-Once mixed, if the frosting appears broken or separated, add room temperature butter 1 tablespoon at a time until it smooths out. Stir by hand for 1-2 minutes for an extra smooth texture, and mix on the lowest speed for a few minutes at the end to remove excess air. The ideal consistency is a soft peak with a small curl, which you can test with a spatula for easy spreading or piping remember to use a large or wide piping tip due to the lime zest. For more ideas on enhancing your desserts, check out our best grilling tips page, as grilling techniques can inspire creative presentation for your frosted treats.