1/4 tsp dry thyme (or 3 sprigs fresh)…I don’t especially like thyme, so I omitted
salt and pepper to taste …my broth is salted, so I add no salt
Baguette, sliced …I did use baguette …but might the next time, use French bread. (I find a baguette too holey)
8 oz of Gruyere cheese, shredded, divided (check recipes if you wish to use Gruyere and combine with another cheese or two …I used just Gruyere
1. Cut onions in half, and slice thinly. Place them in the slow cooker. Add your melted butter and stir well so all onions are coated. Put this on low overnight, 10 – 12 hours.