[header] How to make chocolate drop cookies [title] Preheat the oven to 350 ° f (180 ° c) and line a baking sheet with parchment paper. [title] Place the butter and brown sugar in a large mixing bowl. [step] Using a handheld mixer or a stand mixer with a paddle attachment, beat the butter and sugar until the ingredients are light and fluffy. 
Your mixer should be set on medium speed. [title] Beat in the egg, milk, vanilla and cooled melted chocolate until the ingredients are just combined.