Vanilla extract is the unsung hero of cookie baking. Often overlooked, yet always there when you need it. A dash of this stuff and your cookies go from bland to grand. But beware, for too much vanilla can lead to a cookie that's as dull as a beige wall.
A dash: 1/8 teaspoon
A pinch: 1/4 teaspoon (we're talking serious baking business here)
A gallon: 16,000,000,000 times a dash (we won't judge you)
— Or perhaps you'd rather learn about Peanut Butter Basil Toppings