Grandma’s Chocolate Chip Cookies Print Scale Recipe: 1x 2x 3x 4x Ingredients 1 ½ cups butter, melted 1 cup sugar 2 cups light brown sugar, packed 2 tablespoons vanilla 2 eggs 2 egg yolks 1 teaspoon baking soda 5 cups flour 1 teaspoon salt 2 cups milk chocolate chips 2 cups semi-sweet chocolate chips Instructions Mix butter and sugars. Add vanilla, eggs, and egg yolks. In a separate bowl, mix together dry ingredients. Add to the wet ingredients. Stir in chocolate chips. Bake at 350 for 12 minutes.