Oooo watch out- the recipe I put on has 2 eggs and walnuts, so not at all suitable for those 2. I have several recipes for egg and nut free biscuits and cake- but not brownies. So if you find one, I'd be very grateful. I have written to Be-Ro to ask their bakers to come up with one, but they haven't got back to me.
One upsetting thing is, that so many people these days have 'bogus' allergies, which are in fact intolerances in many cases- that many people just shrug their shoulders and ignore those who do have REAL SEVERE AND LIFE-THREATENING ALLERGIES, like our lovely GS. The last time he was rushed to A&E, a little girlfriend had just given him a peck on the cheek and must have touched his lips. She had had biscuits after lunch which contained egg- so very little is needed to have a severe reaction.
Thanks for your concern- but we digress. As said, using packet mixes is a nightmare with a child with allergies- as so many additives are used in such packets. So easy to make biscuits from scratch- so, again personally, just can't see the point. The 'cookery' teacher at my last school really tried hard to encourage kids to cook simply from scratch- making pancakes, Yourkshire puds, cakes and biscuits, and 1000s of recipes is so so simple and so much cheaper, with much more wholesome ingredients. I'm sure Jamie would agree, and many Chefs. Keep it simple, make it yourself- easy peasy.