15-Minute Buttered Balsamic Mushrooms

INGREDIENTS

3 cloves

Garlic

1 1/2 tsp

Rosemary or thyme, fresh leaves

1 lb

White or cremini mushrooms

2 tbsp

Balsamic vinegar

1 tbsp

Tamari or soy sauce

1/4 tsp

Black pepper, freshly ground

1 1/2 tbsp

Brown sugar, packed light

1/2 tsp

Kosher salt

1 tbsp

Olive oil

3 tbsp

Butter, unsalted

Large or 2 small shallots, peeled and finely diced