Vegan Crockpot French Onion Soup

Add butter and onions to a lightly greased (or better yet, lined) crockpot. Add a generous amount of salt and pepper and the sugar. Cook on low for 8 hours uncovered. The onions should be brown and caramelized. It’s okay if they’re stuck to the pot a little.

Add stock, bay leaves, thyme, and wine. Add a little more salt and pepper to taste here if you want. (I did).
Cook covered on low for 12 more hours or overnight.

Preheat broiler on high. Toast French bread slices.

Ladle the finished soup into serving crocks, finishing with a tablespoon of red wine vinegar. Add the toast, cover with your favorite cheese, and broil until cheese is melted, around 5–10 minutes. Keep an eye on it!