I tried this (pulled shamelessly from HT) and it's DELICIOUS. I'm making some from rabbit this afternoon. I expect it to be slightly less strong (venison DOES have a distinct flavor), so I'll add more red pepper perhaps to 1/2 batch.
Since Venison and rabbit are pretty equal in the fat department, I think it should translate well.
You will need a ratio of 1 1/2 lbs. of ground venison to 1/2 pounds ground pork fat or cheap bacon. Or 1 1/3 lbs. ground venison to 2/3 pounds ground fat or bacon for those who like a little more fat in their sausage.
2# ground meat.
2 tsp. Dried Sage.
2 tsp. Salt.
1 tsp. Gr. Black Pepper.
1/4 tsp. Dried Marjoram
1 tblsp. Brown Sugar
1/8 tsp. Crushed Red Pepper flakes
1 Pinch Ground Cloves.
In a glass bowl mix all the ingredients into the meat and mix well. Cover the bowl with Saran Wrap and place in refrigerator overnight. Next morning mix well again before patting out patties and frying.
By adding some liquid to it, it gets nicely squishy and would go into casings well, I think. My plan is to try adding maple syrup in place of the brown sugar.
otherwise, water would work well.