INGREDIENTS
1
Egg, large
2 1/2 cups
Rolled oats, old fashioned
1 cup
All-purpose flour
3/4 tsp
Baking powder
1/2 tsp
Baking soda
1/4 cup
Brown sugar, packed light
1/4 tsp
Cinnamon
1 tsp
Kosher salt
1 cup
Sugar
1 tsp
Vanilla extract
14 tbsp
Butter, unsalted