bratwurst

2 pounds ground venison
2 pounds ground pork butt

3 tablespoons minced dehydrated Onion
1 teaspoon brown sugar
1 tablespoon kosher salt
½ teaspoon ground sage
½ teaspoon marjoram
1/2 teaspoon cumin
1 tablespoon dehydrated minced garlic
¼ teaspoon cayenne pepper (optional)
1 teaspoon freshly grated black pepper
2/3 cup dark beer (Guinness is good)
2 ounces potato starch
1/2 cup ice water
Casings