Monster Cookies

Ingredients (13)

• 1/2 cup (1 stick) unsalted butter, softened
• 3/4 cup firmly packed dark brown sugar
• 1/4 cup granulated sugar
• 1/2 cup creamy peanut butter
• 1 large egg at room temperature
• 1 teaspoon pure vanilla extract
• 1/2 teaspoon baking soda
• 1/4 teaspoon kosher salt
• 1 cup white whole wheat flour or whole wheat pastry flour
• 1 cup old fashioned rolled oats
• 3/4 cup dark chocolate M&Ms
• 1/2 cup semi-sweet or dark chocolate chips
• 1/2 cup peanut butter chips