Softbatch Brown Butter Snickerdoodles + Video

INGREDIENTS

for the cookies:

1/2 cup

salted butter

1/2 cup

granulated sugar

1/3 cup

light brown sugar

large egg plus 1 egg yolk, room temperature

1/2 tsp

salt

1/4 tsp

baking soda

1 tsp

cream of tartar

1 tbsp

plain yogurt or sour cream

1 tsp

vanilla extract

1 1/4 cups

flour

1/2 cup

sugar

2 tbsp

ground cinnamon

for the frosting:

1/4 cup

salted butter, room temperature

2 tbsp

dark brown sugar, plus more for sprinkling

1 cup

powdered sugar