French Onion Soup

large onion, thinly sliced

butter

extra virgin olive oil

~ 2 tsp fresh thyme, stripped off of the stems

~ 1 Tbsp flour

garlic, finely chopped

red wine

low sodium beef broth

salt and pepper

fresh mozzarella cut into cubes, or grated mozzarella

slices of cheese (I recommend Gruyere, but you can also use Swiss or Provolone)

thick slices of French bread