I'm making a caramel nut tart (from Epicurious--I've made it before and it's great) in which the filling is made by cooking 1 cup light brown sugar, 1 stick of butter, 0.5 cup honey, and 0.5 cup cream with 3 cups nuts in a saucepan. Trouble is, I forgot to get light brown sugar at the store, and now I've let my husband take the car and I have to make the tart for a dinner tonight. I know the standard sub for light brown sugar is to add 1.5 Tbs molasses to white sugar, but I don't have any molasses. Can I add an extra 1.5 Tbs honey to the mix? Will honey add any of the caramelly flavor that brown sugar would have offered, or, considering that there's already so much honey in the recipe, is it not worth messing with the proportions for what would probably be a small return in flavor? Or should I try and improv something else entirely to make?