Place all the ingredients into a jar with a tight fitting lid. Shake vigorously to combine. Taste, and adjust the vinegar, olive oil or seasonings to taste.
⅓ cup red wine vinegar, ⅓ cup extra virgin olive oil, 2 garlic cloves, 1 tablespoon lemon zest, 1 tablespoon freshly squeezed lemon juice, 1 ½ teaspoons dried oregano, 1 teaspoon salt, ¼ teaspoon ground black pepper