Watermelon Slice and Bake Cookies are a tender summer butter cookie that's made to look like slices of watermelon, complete with a green sprinkle rind and mini chocolate chip seeds!
Dough: Use a food processor or KitchenAid mixer to pulse the flour, powdered sugar, and salt together until combined. Add in the butter and pulse/mix until the mixture is a sandy texture.
Add in the egg yolk, milk, watermelon flavoring, and food coloring. Continue to mix the dough until all the ingredients are well incorporated. Fold in the chocolate chips and mix until they're well distributed.
Remove the dough from the mixer and form it into a 2.5" wide log, wrap it in plastic wrap and refrigerate for 2 hours until firm.
Prep & assemble: Get the oven preheating to 350 degrees. Line two baking sheets with parchment paper and set them aside. Remove cookie log from the fridge and let it sit for about 10 minutes.
Spread green sugar on a plate; then unwrap the dough and roll the log in the sugar to coat the outside well. I used about a ¼ of the bottle of green sugar- you'll have to roll it several times to get it all covered. Use your fingers to fill in the bare spots.
Slice the dough into just larger than ¼" slices and arrange on the prepared baking sheets. I got 12 rounds from my cookie log. Then cut each cookie round in half, so that you have "slices" of watermelon.
Bake: Place cookies in the preheated oven and bake for 12-14 minutes, or until the cookies are golden brown around edges.
Let the cookies cool on the baking sheet before transferring them to a serving platter. Serve and enjoy!
Notes
These cookies will stay fresh for up to 5 days if stored in an airtight container at room temperature.Place them in an airtight container or freezer bag and freeze for up to 3 months. Thaw at room temperature before serving.