French Onion Grilled Cheese

Ingredients

• Sourdough bread

  pantry
  12 slice

  $3.60
• Yellow onion

  produce
  3 onion

  $3.00
• Gruyère

  dairy
  12 oz

  $84.00
• Butter

  dairy
  9 tbsp

  $1.80
• Beef broth

  pantry
  12 tbsp

  $4.80
• Worcestershire

  pantry
  1.5 tsp

  $0.30
• Thyme

  spices
  1.5 tsp

  $0.15
• Black pepper

  spices
  1.5 tsp

  $0.08
• Dijon mustard

  pantry
  3 tsp

  $0.60

Instructions

1. 1

   Slice onions thin. Cook in butter on low with salt 35 min until deep brown.

2. 2

   Stir in broth, worcestershire, thyme, pepper. Reduce 2 min.

3. 3

   Spread dijon on bread, layer gruyère and onions.

4. 4

   Butter outside, griddle medium-low until golden and cheese melts, 4 min per side.

5. 5

   Slice diagonally.

Prep Timeline

Firehouse Notes

• Don't rush the onions — slow caramelization is the whole flavor.
• Make the onions ahead; keep in fridge a week.