These coconut lime cookies are a Crumbl copycat made at home in about 40 minutes: soft, thick cookies with a bright lime frosting that tastes just like the real deal.
Start by preheating your oven to 350°F and lining a couple of baking sheets with parchment paper. Set those aside while you make the dough. In the bowl of a stand mixer, combine the softened butter, granulated sugar, and powdered sugar. Cream together until the mixture is smooth and fluffy, about 2–3 minutes.
1 cup unsalted butter, ½ cup sugar, ¼ cup powdered sugar
Add in the oil, egg, lime juice, and coconut flavoring, mixing well and scraping down the sides as needed to make sure everything is evenly incorporated.
¼ cup oil, 1 egg, 1 teaspoon coconut flavoring
Add the flour, baking powder, and salt to the bowl and mix thoroughly, again scraping down the sides often. The dough should come together into a soft but workable consistency.
2½ cups flour, ½ teaspoon salt, 1 teaspoon baking powder
Using a large ice cream scoop, divide the dough between the prepared baking sheets. Gently flatten each ball to about half an inch thick.
Bake for 10–12 minutes, until the centers are just set. You want the bottoms to be lightly golden brown but you don't want any browning around the edges. These cookies will look slightly underdone when you pull them out, which is exactly right. Allow them to cool completely on the pan before adding any frosting.
While the cookies cool, make the frosting. In the stand mixer bowl, combine the softened butter and powdered sugar and mix on low until combined. Add the lime juice and lime zest, then increase the speed to medium and beat until smooth and fluffy, scraping down the sides often.
1 tablespoon lime juice, ½ cup unsalted butter, 1 cup powdered sugar, 2 tablespoons lime juice, 1 teaspoon lime zest
Once the cookies are fully cooled, spread a thin layer of frosting over each one and sprinkle with additional lime zest to finish.
Additional lime wedges and zest
Notes
Don't skip the cooling step. Adding frosting to warm cookies will cause it to melt right off. Give them at least 30 minutes at room temperature.
Flatten evenly. Using the bottom of a flat measuring cup or glass helps you get a consistent thickness across all your cookies.
Don't overbake. The cookies will continue to set as they cool on the pan. Pulling them out when the centers still look slightly soft is the secret to that Crumbl-style chewy texture.
Room temperature ingredients matter. Make sure your butter is properly softened, not melted, for the best texture in both the cookie dough and the frosting.
For a piped look: Transfer the frosting to a piping bag with a round tip and swirl it onto the cookies for that classic Crumbl presentation.
Fresh lime is worth it. Bottled lime juice works in a pinch but fresh gives you a brighter, more aromatic flavor in the frosting.