Creamy French Onion Pasta (One Pot)

1. In a large skillet over medium high heat, add the olive oil. 
2. Add the thinly sliced onions to sauté for 15-20 minutes, until deeply caramelized, stirring occasionally to keep from burning. 
3. Add the minced garlic, mushrooms, and thyme. Sauté 2-3 minutes. 
4. Add the white wine to deglaze the skillet on medium heat for 1-2 minutes. 
5. Add the beef broth and water, then bring to a boil. 
6. Add the uncooked pasta, using a wooden spoon to make sure all the pasta is under the liquids, to cook until al dente.
7. Turn off the heat and remove from the stovetop. Stir in the heavy cream and apple cider vinegar. 
8. Garnish with freshly grated parmesan and fresh thyme leaves to serve!