The reason I make some home made treats is the ones in the store have tons of chemicals in them and artificial flavor and color.
There is one brand I like-Natures medley I think...it's whole food not extra ingredients. So the ingredient listing is like : Duck, sweet pototoes.
That's it!
I obviously can't remember what they are called b/c I cannot find it online
Anyways I make two kinds of treats, and they are easy.
I put the stuff in a blender (Whatever stuff I want, in whatever amounts. Carrot is usually the base)
Then I either:
add oats/flour/bread to make it doughy and bake it to make cookies
or
poor it into small cups to make popsicles.
No need to worry about proportions as it's not a full diet just treats, and dogs don't care what it looks like. Honestly I just chuck it all in the blender. Foods you CANNOT use: Avacado, grapes or raisins, onion, tomatoe, chocolate, licorice, caffeine.
Use garlic sparingly as it's linked to hemolitic anemia.
No uncooked yeast!
Good foods to use: Carbs:Sweet potatoe, rice, oats, flour, bread for the carbs.
Veggies and fruits: Most berries, banana, pumpkin, squash, carrots, peas, celery, green pepper, broccoli, apples, melon.
Protein sources; Pretty much all meats are safe and fine, so are eggs. I steer clear of tuna b/c of the mercury content. If your dog is fine with dairy, yogurt and milk are good too.