My daughter’s friend has a mild nut allergy. I’m providing a separate sandwich for him at her party as the venue can’t guarantee to be nut free. My question is what to do about a cake? I want to go shop bought as I’m a terrible baker. Is there any way of buying a cake that will be nut free? Or do I need to make him a separate cupcake & inflict my baking on him? I’d be very grateful for advice from any with experience of nut allergy.