Indulgent Double Chocolate Cookie Recipe

Ingredients

• 1/2 cup unsalted butter, at room temperature
• 1/2 cup granulated sugar
• 1/2 cup brown sugar
• 1 large egg
• 1 teaspoon pure vanilla extract
• 1 1/2 cups all-purpose flour
• 1/4 cup unsweetened cocoa powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1/2 cup milk chocolate chips
• 1/2 cup semi-sweet chocolate chips