INGREDIENTS
1 cup
old fashioned oats
1 cup
all-purpose flour
1 1/2 tsp
baking powder
1/4 tsp
baking soda
1/4 tsp
kosher salt
1/2 tsp
ground cinnamon
1/4 tsp
grated nutmeg
8 tbsp
unsalted butter, at room temperature
1/2 cup
light brown sugar
1/4 cup
granulated sugar
1
large egg
1 tsp
vanilla extract
1 1/2 cups
confectioners’ sugar
2 tbsp
milk, plus more as needed
1/2 tsp
vanilla extract