My gluten-free shortbread cookies with brown sugar are crisp around the edges with a tender, chewy center. It's the simplest cookie recipe but gives you a treat that just melts in your mouth. Perfect for any occasion!
Beat the butter and brown sugar together in the bowl of an electric mixer fitted with a paddle attachment until combined. Add the vanilla.
Sift together the gluten-free flour and salt. Mix into the butter and sugar. Work the dough on low speed just until it begins to come together, scraping down the bowl as needed.
Transfer the cookie dough to a flour-dusted surface or a piece of parchment. Roll into a log or flatten into any shape, about ½ inch thick. Cover with plastic wrap and chill for 30 minutes.
Preheat the oven to 350°F. Roll the dough and slice into ¼-inch slices. Place the slices, spaced at least an inch apart, onto a lined baking sheet. Optionally, pierce a pattern on the top with a fork.
Bake the chilled cookies for 15–20 minutes, or until the edges are golden brown. Cool completely on a wire rack before serving.