Balsamic-Glazed Green Beans

1 (12 -ounce) package trimmed green beans

1 tablespoon butter

3 tablespoons minced shallots (about 2)

2 garlic cloves, minced

1/4 cup balsamic vinegar

1/2 teaspoon salt

1/4 teaspoon freshly ground black pepper

Microwave green beans according to package.

While beans cook, melt butter in a large skillet heat.  Add shallots and garlic; cook, stirring

constantly, 2 minutes. Stir in vinegar, salt, and pepper; cook 1 minute. Add beans, tossing to coat.