INGREDIENTS
1
Egg, large
2 1/4 cups
Oats, old-fashioned
1/2 tsp
Baking powder
1/2 cup
Brown sugar, packed
1 1/2 tbsp
Cornstarch
2 tbsp
Granulated sugar
1/2 tsp
Kosher sea salt
1 cup
Semisweet or bittersweet chocolate chips or
1 1/2 tsp
Vanilla extract
1/2 cup
Butter, unsalted