Chocolate peanut butter chip cookies

Ingredients

• 2 cups flour
• 3/4 cups cocoa powder
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 1-1/4 cups butter, softened
• 2 cup sugar
• 2 eggs
• 2 teaspoons vanilla extract
• 10 ounces peanut butter chips