I stumbled on these by accident, a sort of kitchen experiment! I was so pleased with how they turned out I have been making them ever since! Once cooked the marshmallows give the cupcakes a soft, molten texture on the inside. It makes a lovely contrast against the crumbly cake surrounding it. Minimal icing is needed as these are already quite sweet. I usually pipe a few stripes of icing accross the cupcakes and then plonk two raspberries on the top of each one! Children seem to love these, I think it's the promise of a hidden taste beyond the cake, the 'jam doughnut' effect!
Recipe posted by tootsievalentine