French Onion Grilled Cheese

French Onion Grilled Cheese

This grilled cheese sandwich is full of the irresistible flavours of classic onion soup.

Preparation 15 min
Total 45 min
2 Servings
Bon Matin™ La mie de l’artisan™ 12 Grain Bread
MADE WITH Bon Matin® La mie de l’artisan™ 12 Grain Bread


  • 4 slices Bon Matin™ La mie de l’artisan™ 12 Grain Bread
  • 1/4 cup (60 mL) butter, divided
  • 1 medium onion, sliced
  • 1 tsp (5 mL) brown sugar
  • 1 tsp (5 mL) balsamic vinegar
  • 1 tsp (5 mL) Worcestershire sauce
  • 1/4 tsp (1 mL) each chopped fresh thyme and rosemary
  • 4 oz (125 g) Gruyère cheese, grated
  • 1 tbsp (15 mL) Dijon mustard


  1. Melt half of the butter in nonstick skillet set over medium heat; cook onion, sugar, vinegar, Worcestershire sauce, thyme and rosemary, stirring occasionally, for about 20 minutes or until onion is soft and caramelized.
  2. Let cool to room temperature; fold in Gruyère.
  3. Spread mustard evenly over 2 slices of bread.
  4. Top with onion mixture; top with remaining bread.
  5. Spread remaining butter over outside of sandwiches.
  6. In nonstick skillet set over medium-low heat, cook sandwiches for 5 to 7 minutes per side or until cheese is melted and bread is golden brown.

Tip: Add dried cherries to onion mixture for a sweet note.