These Gluten Free Sugar Cookiesare soft, tender and taste just like your favorite bakery style cookie with a sweet & creamy 4-ingredient vanilla buttercream frosting. Perfect any time you're craving a soft healthy sugar cookie and a favorite for holiday cookie trays! Plus, they are refined sugar-free, paleo-friendly and easily dairy-free.
Whisk together flours, baking soda, baking powder and salt in a bowl.
In a stand mixer with a paddle attachment, cream together sugar, butter and sour cream until light and fluffy.
Add egg and vanilla and mix again.
Slowly spoon in dry ingredients, mixing on low speed until cookie dough is just combined.
Cover bowl with plastic wrap and chill cookie dough for 1 hour.
Meanwhile, prepare two cookie sheets with parchment paper.
Scoop 2-tbsp balls of cookie dough onto the cookie sheets, spacing 2-3 inches apart.
Take the bottom of a flat glass dusted with flour and gently mash down each cookie dough ball until flat. Reshape edges if needed with floured fingers.
Place cookies back in the fridge to chill while oven preheats.
Preheat oven to 375°F.
Bake cookies on middle rack until slightly golden on edges, about 9-11 minutes. Don't overbake.
Place cookie sheets on cooling rack and allow cookies to completely cool before frosting.
In a stand mixer or a large bowl with a hand mixer, beat butter and dairy-free cream cheese until light and fluffy, about 2-3 minutes.
Add vanilla and powdered sugar and mix until smooth.
Add food coloring, a small amount at a time, mixing until desired color is reached (optional).
Frost the cooled cookies, leaving a small border exposed.