Oh how I wish I could start the New Year with a fresh slate. But maybe not. If I had wiped out all of my 2023 emails, I would have lost some precious correspondence from last year. Several readers, for instance, wrote in response to a column that compared honey and molasses. David D. wrote, “I make mustard from scratch using Colmans powdered mustard, apple cider vinegar, eggs and sugar. Would you know if I could substitute honey for the sugar and if so, in equal amounts?” Not in equal amounts, David, but it can be done. Here’s what the folks at the National Honey Board (honey.com) recommend: W…