If you're a fan of root beer floats, you'll love these delicious Root Beer Float Cookies! Made with brown sugar, butter, vanilla extract, and root beer concentrate, these soft and chewy cookies are a fun way to enjoy the classic flavors of vanilla ice cream and root beer.
In a large bowl or stand mixer, cream butter, brown sugar, granulated sugar, about 3 minutes on medium high.
Mix in root beer concentrate, vanilla extract, milk, and egg, beating 1-2 minutes until light and fluffy.
Add all purpose flour, cream of tartar, and baking soda, mixing until just combined (no dry flour).
Stir in white chocolate chips. Cover dough and refrigerate for 30 minutes to 1 hour.
Preheat oven to 350 degrees. Prepare a baking sheet with parchment paper. Using a medium cookie scoop, place cookie dough onto prepared pan at least 2 inches apart. Press chocolate chips on top, if desired.
Bake 10-12 minutes and lightly browned. Rest 5 minutes on cookie sheet, then remove and place on wire racks to cool the rest of the way. Enjoy!