Start off by sifting 1 1/2 cups of all-purpose flour, 1 teaspoon baking powder, 1 teaspoon baking soda, and 1 teaspoon salt into a large bowl. Then set it aside.
Cream butter and sugar
Now, in a separate bowl add 1 cup of softened unsalted butter, 3/4 cup granulated sugar, and 3/4 cups of golden brown sugar. Using an electric hand mixer, beat that on medium-high speed for about 1 minute or until the butter and sugar are well-creamed together. ￼￼
Mix in eggs, vanilla, and peanut butter
Next, add 1 large egg and 1 egg yolk, along with 1 teaspoon of vanilla extract. Beat again until well combined.
Now add 1 cup of creamy peanut butter to the butter and sugar mixture. And combine once more at high speed.
Add flour mixture
Then, add the sifted flour mixture to the cookie dough and gently mix it in using a spatula. Mix until no more dry patches of flour are visible.
Scoop out mounds of the cookie dough using a medium trigger release cookie scoop. Then place them onto your prepared baking sheet. You can leave them as they are or roll each cookie dough ball into your hand for a prettier baked cookie.