INGREDIENTS
1
Egg, large
1
Egg yolk, large
1 1/2 cups
Rolled oats, old-fashioned
3/4 cup
All purpose flour
1/2 tsp
Baking soda
1/2 cup
Brown sugar
1/4 cup
Cocoa powder, unsweetened
1/4 cup
Granulated sugar
1/4 tsp
Salt
1/2 tsp
Vanilla extract
1/2 cup
Butter, unsalted
1 cup
Chocolate chips or chunks