Preheat your oven to 350°
Cream 3/4 cup of room temperature butter with 1 cup of brown sugar and 1/2 cup of granulated sugar using an electric hand mixer or a stiff whisk
Add 2/3 cup of creamy peanut butter, 2 teaspoons of vanilla extract, 1 large egg and 1 egg yolk and mix until the peanut butter is evenly distributed
Add 2 cups of all purpose flour, 3/4 teaspoon of baking soda, 1 teaspoon of baking powder and 1/4 teaspoon of salt and mix until just combined
Fold 1 1/2 cups of chocolate chips or chopped chocolate into the cookie dough until evenly distributed
Drop rounded tablespoons of cookie dough onto a non-stick or parchment lined baking sheet about 2 inches apart and bake for 10-11 minutes or until the edges are lightly golden
Transfer the baked cookie dough onto a cooling rack until the cookies feel set
Store left over cookies in an airtight container at room temperature