Comments: Drizzle over grilled steak

1 cup Balsamic vinegar

4 Cloves Garlic; sliced

4 pinches (about 1 tbl.) fresh rosemary

2 tbl, Butter; optional

• Put all the ingredients except the butter into a saucepan and bring to a boil.
• Reduce the heat and simmer until it is reduced by half, about 10 minutes.
• The sauce is ready when it coats the back of a spoon.
• Add the optional butter and stir well.