It was super easy and and the muffins actually are quite lovely.
Here's the recipe: http://allrecipes.co.uk/recipe/21940/basic-muffins.aspx
They are a little flat, but that is because I didn't know how much I had to put into the form. Next time, they'll be better. And I'll add banana and blueberries.
(Marcos, when you're reading this, I know you'll be damn proud of me.)