INGREDIENTS
1
Egg, large
2 1/2 cups
Rolled oats, old-fashioned
3/4 tsp
Baking powder
1/2 tsp
Baking soda
1/4 cup
Brown sugar, packed light
1 cup
Flour
1/2 tsp
Sea salt, flaky
1 cup
Sugar
1/4 tsp
Table salt, regular
1 tsp
Vanilla extract
6 oz
White chocolate bar, good-quality
1 3/4 sticks
Butter, unsalted