Gluten-Free Sandwich Cookies With Dulce De Leche (Alfajores)

• 2 1/2 cups cornstarch
• 1 cup gluten-free all-purpose baking flour
• 2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1 cup unsalted butter, softened
• 3/4 cup white sugar
• 3 egg yolks
• 2 teaspoons lemon zest
• 1/2 teaspoon vanilla extract
• 1 (11.5 ounce) jar dulce de leche
• 1/2 cup shredded coconut

1. Preheat oven to 350 degrees F (175 degrees C). Line 2 baking sheets with parchment paper.
2. Whisk cornstarch, flour, baking powder, and baking soda in a bowl.
3. Beat butter and sugar with an electric mixer in a large bowl until light and fluffy. Whisk in egg yolks, one at a time, until well combined. Add lemon zest and vanilla extract with the last egg. Fold into flour mixture with a spoon, mixing until dough holds together and turns into a ball. Wrap in plastic wrap; refrigerate for 30 minutes to 1 hour.
4. Roll out dough to about 1/4-inch thickness. Cut cookies with a small round cookie cutter and place on the prepared baking sheets.
5. Bake in the preheated oven until set but not browned, 7 to 10 minutes. Remove immediately to cool on a wire rack.
6. Spread underside of a cookie with 1 teaspoon dulce de leche. Sandwich together with another cookie until filling comes out on the sides. Roll sides in the shredded coconut.

cornstarch, flour, baking powder, baking soda, unsalted butter, white sugar, egg yolks, lemon zest, vanilla, leche, shredded coconut

Taken from www.allrecipes.com/recipe/260668/gluten-free-sandwich-cookies-with-dulce-de-leche-alfajores/ (may not work)