Making cookie dough in Little Alchemy 2 involves combining various elements to get the desired results. Start by combining 'Cake' and 'Coffee' to create 'Batter.' Next, combine 'Batter' with 'Flour' to create 'Cookie Dough.' Now, add 'Butter' to the 'Cookie Dough' to create 'Chocolate Chip Cookie Dough.' Finally, combine 'Chocolate Chip Cookie Dough' with 'Oven' to create the final product: 'Cookie.'
