I was asked to post this with dairy free recipes...so hoping this is a good spot
Substitute for sweetened condensed milk:
I've not tried this other than in pumpkin pie filling, but a 14 oz can of sweetened condensed milk can be subbed with 1/2 cup maple syrup and 1/2 cup soy milk (I used to use rice milk). I've also used rice milk and subbed the maple syrup with brown sugar and water. Not so much for allergies as an empty kitchen and kids on a pumpkin kick, but, at the time they loved it.