INGREDIENTS
2 tbsp
butter (unsalted)
2
onions (sliced)
24
mushroom stems
1 tsp
Worcestershire sauce
1/4 cup
white wine
1/2 cup
Gruyere cheese
1/4 tsp
salt (or to taste)
1/4 tsp
pepper (or to taste)
24
cremini mushrooms (stems removed (needed for filling))
1 tbsp
butter (unsalted)
1 tbsp
chives (chopped)