New issues-need advice

Mr. 'T' has a condition in his mouth that has to be treated with steroids and it will be ongoing. Also, I use my Krupps grinder to puree his food into thin gravy so he can eat. This will be ongoing, according to the vet. On top of that, he is quite finicky. He will once in awhile take a small bite of something that is very moist. I worry that he's getting enough food. Although his weight seems to move only an ounce or two in any direction.

I've tried many of the tricks I've read here to get him to like his food. We realize that someone before us must have given him sweets because he likes them. He just ate a few very small pieces of something I baked - a gluten free dairy free carob chip scone which had raw honey in it. He loved it.

Would it be safe at times to give him a home made treat to sprinkle on his food? I only do gluten free, dairy free, sugar free (use raw honey or real maple syrup).

Or if you have any ideas how to help him. 

Cats don't really have a sweet tooth; your cat may be drawn more towards fat and carbohydrate. So I wouldn't give him sweets.
If you're concerned about Mr. T getting enough calories, do you add water to the puree? Maybe you could add an egg (calorically dense) and/or goat's milk or kitten milk replacement instead. (Cats are lactose intolerant, but some can handle goat milk.)

My cat was constantly on the look-out for any bits butter/margarine/oil that flew off the beaters and onto the floor when I was baking. I'm pretty certain that this sugar-laced butter was what pushed him over the edge to diabetes. Please be careful about feeding sweets.