I apologise for a truly tardy reply I have not been on a computer for some 8 weeks and may not catch up with myself for sometime!
Home made food is more now to knowing your own animal, I have had many enough to know they can be picky.
Avoid junky ingredients there is a trend towards dogs especially of sweet treats NO NO!
Use oats, lentils or peas add lightly cooked ground up meat(defrosted blocks are best) with some aniseed, make a dough on a flat tray and bake at 160 C for about 10 minutes
I have been experimenting with recipes (or formulae in my current situation, as I have some seriously ill pooches)
Regarding ingredient ratios I will post some more info later this week