[header] How to make chocolate cupcakes with peppermint frosting [title] Preheat oven to 350 ° f (175 ° c). [title] Combine the brown sugar and the butter in a large mixing bowl. [title] Beat with a mixer set at medium speed for two minutes or until well-blended. 
[title] Add the eggs, one at a time, beating well after each one. [title] Lightly spoon the flour into a dry measuring cup and scrape the flour level with a knife.