Dark chocolate peanut butter chocolate chip cookies

Ingredients

• 1 cup butter
• 3/4 cup peanut butter
• 1 1/2 cups white sugar
• 2 eggs
• 2 teaspoons vanilla extract
• 2 cups all-purpose flour
• 2/3 cup unsweetened dark cocoa powder
• 3/4 teaspoon baking soda
• 1/2 teaspoon salt
• 12 oz dark chocolate chips