Place the cookie sheet in the refrigerator for 30 minutes. This helps the cookies keep their mound shape while they bake.
After 30 minutes, preheat the oven to 375°F. Bake the cookies for 14-17 minutes, until the tops are firm and golden brown. I personally like a deep golden brown so the tops are crunchy, but you can cook them to a light golden if you like a softer cookie. Let the cookies fully cool before frosting.
Whipped Peanut Butter Frosting
Add butter and peanut butter to a stand mixer with a whisk attachment and whip for about 5 minutes, until it becomes very light tan and fluffy. It should lose its glossy shine and hold stiff peaks.
Add powdered sugar and 2-3 tablespoons of milk until you reach the desired consistency.
I prefer to chill my frosting for this recipe for 30 minutes so that I can scoop it easily with a 1-tablespoon cookie scoop on top of the cookie. A spoon can also be used to add a dollop of frosting to each cookie.