Gratinéed Asparagus Toast | RICARDO

Ingredients

• 2 onions, chopped
• 3 tablespoons (45 ml) olive oil
• 1/2 teaspoon (2.5 ml) mustard seeds
• 1/2 lb (225 g) thin asparagus, cut into 1/2-inch (1-cm) lengths (keep the tips whole)
• 1/4 cup (60 ml) chicken broth
• 12 diagonal thin slices baguette
• 1 1/2 cups (375 ml) grated cheese (Emmenthal or other cheese of your choosing)
• Salt and pepper