*blackstrap molasses contains more nutrients and minerals than other types.
Xylitol does contain calories, and is toxic to dogs. It's also slightly sweeter than erythritol and can be used 1:1 with table sugar in recipes.
You may try adding in a ¼-1/2 t. of stevia extract for a 'Truvia' brown sugar blend. This will adjust the sweetness up a bit if using erythritol.