In a small skillet heat oil with onion and garlic over low heat; sweat until onion is tender, about 5 minutes. Transfer onion to a large bowl to cool and toss with remaining ingredients. Place 1/4-inch die in meat grinder; run all ingredients through. Cook a small patty, taste and adjust seasoning, if necessary. Form ground meat into 2-inch patties. In a cold cast-iron skillet, place sausages and cook over medium-high heat, turning once, about 15 minutes or until well browned.
Yield: 8 to 10 Patties