Created by GibsonGirl on October 25, 2011
Step 1: Cut onions in half and slice thinly.
Step 2: In a 4 quart dutch oven (or stock pot)melt butter with olive oil. Add sliced onions and sprinkle with the sugar, salt and pepper.
Step 3: Cook over medium low heat until caramelized and golden. This will take about 30 minutes.
Step 4: Add beef consomme, red wine, balsamic vinegar, cayenne pepper,thyme leaves and celery seed.
Step 5: Slow simmer for 30 minutes.
Step 6: Ladle into buttered oven proof soup bowls.Place bowls on a baking sheet.
Step 7: Top with toasted French bread, Swiss cheese and sprinkle with Parmesan cheese.
Step 8: Bake 5 minutes at 425 degrees. Broil 1 minute or until cheese is golden. Watch carefully as this can burn quickly.