They're DELICIOUS!
Hugh Fearnley-Whittingstall ones (which I add a lemon drizzle icing to).
They freeze really well so I do a big batch and then just reheat them once defrosted.
Recipe here (and note the instructions for replacing some of the flour with ground almonds to make the frangipane ones, although I didn't use almond oil and added vanilla extract instead for a TRIO of delicious flavours
)....
http://www.channel4.com/4food/recip...hittingstall/lemon-curd-marble-muffins-recipe
Btw - Callie made em and had a bit of trouble with them, but that's probably cos she didn't actually follow the recipe in the first place
...defo important not to over mix when you combine the wet and dry ingredients too though!