These are the best chocolate chunk cookies you will ever try!
Heat oven to 350F.
Line two baking sheets with parchment paper, and set aside.
In a medium bowl, whisk together flour, salt, baking powder, and baking soda.
Set dry ingredients aside.
In the bowl of an electric mixer, combine butter with both sugars; beat until light and fluffy.
Add vanilla, milk, and eggs; mix well.
Add reserved dry ingredients, and beat until just combined.
Remove bowl from mixer, and fold in oats, chocolate, and chocolate chips.
Use a tablespoon to spoon six balls of dough on each baking sheet, spaced 4 inches apart, and press down to flatten.
Transfer to oven.
Bake until golden, but still soft in center, 15 to 16 minutes.
Remove from oven, and place on a wire rack to cool completely.
Repeat with remaining dough.
Store in an airtight container up to 2 days or freezer for 1 month.