Add in flour, cream of tartar, baking soda. If dough seems a bit dry add it a little more milk, but just a little.
Mix in white chocolate chips, reserve some to place on top of scoop of cookie dough.
Bake on an ungreased cookie sheet for 10 minutes. Remove from oven and let cool for about 5 minutes and then move to a wire rack.
Notes
Reserve a handful of white chocolate chips and place three of them on top of the ball of cookie dough before baking. Push into the dough slightly.
Root beer Concentrate and root beer extract are not the same thing. Root beer concentrate will have a deeper and stronger flavor than extract. It is what we recommend you use for baking because you will use much less, and the flavor quality cannot be beat. Your Root Beer Float Cookies will have a noticeably stronger flavor that harkens to that traditional ice cream float we all know and love.