In a small saucepan over medium heat, combine ¼ cup sherry or red wine vinegar, 2 Tbsp. honey, 4 tsp. Worcestershire sauce, 3 rosemary sprigs, 3 crushed garlic cloves, two 2×1″ strips of orange zest, and the remaining 4 Tbsp. of room-temperature butter. Cook until the mixture is bubbling and slightly thickened, about 5 minutes. Reduce heat to the lowest setting and keep the glaze warm.