Creamy Pressure Cooker Two-Potato Seafood Chowder

This comforting chowder, packed with tender oysters, your favourite fish, russet and sweet potatoes, is a satisfying meal anytime of year. You can use any Canadian fish that’s available as they all cook in about the same length of time. That’s the beauty of cooking with seafood!


  • 250 g (approximately 8 oz) Canadian rockfish, redfish, or halibut, cut into bite-size chunks
  • 8 to 10 (250 g) medium-sized shucked raw Canadian oysters
  • 2 tbsp (30 g) butter
  • 1 onion, chopped
  • 1 stalk celery, chopped
  • 3 cloves garlic, minced
  • ¼ tsp (1 g) each salt and pepper
  • 4 cups (1 L) homogenized (3.5%) milk
  • 1 bottle (236 mL) clam juice
  • ½ cup (125 mL) dry white wine
  • 2 russet potatoes, peeled and diced (about 2 cups / 300 g)
  • 1 large sweet potato, peeled and diced (about 2 cups / 300 g)
  • 3 sprigs fresh thyme
  • 3 tbsp (24 g) cornstarch
  • 1 tbsp (15 mL) lemon juice
  • 2 tbsp (6 g) chopped fresh chives


  1. Set electric pressure cooker to sauté function on medium heat. Add butter, onion, celery, garlic, salt, and pepper; cook, stirring occasionally, for 3 minutes. Add milk, clam juice, wine, potatoes, sweet potatoes, and thyme.

  2. Close and seal lid; set manually to cook on high pressure for 10 minutes. Turn steam vent to venting position to release pressure. Open lid and stir well.

  3. Whisk together cornstarch and 3 tbsp (45 mL) water; stir into soup. Add fish. Set to sauté function over high heat; bring to boil. Reduce heat to low and simmer for 3 minutes; add oysters. Cook until oysters plump up and start to curl around the edges and fish flakes easily when tested with a fork, about 3 minutes.

  4. Ladle into bowls and top with chives.

Stovetop Version

Substitute a large Dutch oven or soup pot for pressure cooker and follow step 1 on stove over medium heat. Bring to boil, stirring often. Reduce heat and simmer until potatoes are tender; 25–30 minutes. Continue with step 3 as directed.

Chef's Tip

  • Can’t find shucked raw oysters? Use drained canned clams or smoked oysters and add in the last minute of cooking, just to reheat.
Choose Canadian Seafood White Icon Oyster

Health Benefits of Oysters

  • Robust Immunity & Skin Health: Oysters are an excellent source of zinc, which contributes to the normal function of the immune system and maintains skin health.
  • Bone & Muscular Health: As a source of magnesium and phosphorous, oysters contribute to the maintenance of normal connective tissue and bones.
  • Energy Metabolism & Growth: As an excellent source of Vitamin B12 and a source of niacin, oysters may support red blood cell formation, energy metabolism, and normal growth.