My girls only get treats in the summer if I need to bribe them back in to the predator proof run. Those have to be high value treats, they prefer the great outdoors! I usually just chop up a hard boiled egg for them.
In the winter the treats are for entertainment since we’re snow covered with frozen ground for 6-8 months.
I grow sprouts and spread a handful or two around the run.
Once a week I’ll hang a homemade flock block or cabbage for them
Or I’ll add warm water to some of their layer feed to make a mash, helps keep them hydrated too.
My homemade flock blocks are mostly their regular food with some added oatmeal, sunflower seeds, some cayenne pepper, some cinnamon and a little bit of bacon fat and molasses to hold everything together. Then I bake them and freeze them. I make them in 3”x5” pans. Usually takes about 2 days for them to finish it, unless they manage to knock it down, then they finish it off in about an hour.