I'll be brewing my first Irish Stout today (NB's Dry Irish Stout recipe), and I'm already coming up with variations to brew down the road. One is a spinoff of my Grandma's Irish Coffee, which she just adds a few shots of Jameson and some brown sugar.
My question is, if I want to stay true to my Grandma's Irish Coffee recipe, will adding brown sugar add anything besides boosting the ABV? Would I be better off using soft candi sugar as a substitute if I wanted to pull some flavor from the sugar? This beer is really a tribute to my Grandma and memories of her making everyone Irish Coffee at our St. Paddy's Day parties before her passing in 2018, so I don't want to stray too far from her recipe.