Roasted Garlic and Butternut Squash Soup

Ingredients

• 2 bulbs of garlic
• 1 medium butternut squash (about 2 lb / 1 kg)
• 2 cups / 500 ml chopped onions
• 1 tsp / 5 ml + 2 tbsp / 25 ml canola oil
• 6 cups / 1.5 L water
• 1 tsp / 5 ml coarse sea salt, or to taste