Mushroom & Cauliflower Soup Gratinee

Serving: 10
Prep Time: 30 min
Cooking Time: 45 min


1 Squeeze roasted garlic cloves from skins and set aside; discard skins.

2 Heat olive oil and butter in a large pot over medium heat. Once butter is foaming, add onion and cook until golden, 7 to 8 minutes. Stir in mushrooms, season generously with salt and pepper and cook, stirring often, for 8 to 10 minutes or until tender but not golden. Stir in sage, bay leaves, thyme and reserved roasted garlic cloves; pour vermouth over and cook until liquid is evaporated, about 3 minutes.

3 Pour stock into the same pot, bring to a boil and add cauliflower; cover and simmer for 10 to 12 minutes or until cauliflower is tender but still has some bite. Remove from heat until ready to serve (soup may be made 5 days ahead, refrigerated, and gently warmed through when ready to broil).

4 Divide soup between 10 heatproof bowls; rub sourdough toast with raw garlic cloves and if large, cut or tear toast to fit; top soup with toast. Divide cheese between toasts and place bowls on a large baking sheet or 2. Broil, in batches if necessary, for 2 to 3 minutes or until cheese is bubbly and golden.

TIP To make roasted garlic, trim tops of garlic heads to reveal cloves; drizzle cut surface with a small amount of olive oil and wrap each head individually in foil to enclose. Roast in a 375°F (190°C) oven for 35 to 40 minutes or until tender.


  • 3 heads garlic, roasted (see TIP)
  • 2 tbsp (30 mL) olive oil
  • 2 tbsp (30 mL) butter
  • 1 large onion, cut in half and thinly sliced
  • 1½ lbs (750 mL) mixed mushrooms, thinly sliced
  • Salt and freshly ground pepper
  • 30 sage leaves
  • 2 bay leaves
  • 2 tbsp (30 mL) chopped thyme
  • 1 cup (250 mL) dry white vermouth
  • 10 cups (2.5 L) chicken stock
  • 1 large head cauliflower, cut into bite-size florets
  • 10 slices sourdough toast
  • 2 cloves garlic, peeled
  • 10 oz (300 g) each sharp cheddar and Comte cheeses, coarsely grated

Where to Find Ingredients

Backyard Fungi

Burke Brothers Farm

Thames River Melons

DeWit Family Farm

Saltarski Farm

Green Hart Farm

Chilligo Creek Farm

Daniel's Cheese and Deli

Charlie's Deli