Chocolate Marble Cookies · Saul Reynolds-Haertle

Ingredients

• 2 cups all-purpose flour
• 1/2 teaspoon baking powder
• 1/4 teaspoon salt
• 1/2 cup packed brown sugar light
• 1/2 cup sugar
• 1/2 cup softened butter
• 1 large egg
• 1/2 cup sour cream
• 1 teaspoon vanilla extract
• 1 cup semi-sweet or bittersweet chocolate chips