Forget the canned mushroom soup! Have you ever made a green bean casserole from scratch? This recipe for green bean casserole is surprisingly easy, made with just a few fresh and simple ingredients. It comes from one of my favorite chefs - Thomas Keller of the French Laundry, and its the perfect way to Wow your family and friends on Thanksgiving or Christmas day. So throw away those cans and fake fried onions. This is a green bean casserole from scratch that youll pass down through generations.Here are the ingredients youll need:2 1/2 lb. haricots verts or green beans, trimmedKosher salt and freshly ground white pepper, to taste2 cups canola oil12 oz. white button mushrooms, sliced 1/4" thick1 3/4 cups heavy cream8 sprigs thyme2 cloves garlic, smashed1 1/2 tbsp. sherry vinegar3 shallots, thinly sliced1/2 cup flourFollow instructions in the video for a wonderful Thanksgiving side dish!