Broccoli Soup - Le-Thermique

Ingredients

• 1 brown onion, peeled cut quartered
• 2 cloves garlic, peeled
• ½ tbsp butter or olive oil
• 1 large broccoli (approx. 400g)
• 1 sweet potato (approx. 180g)
• 725 ml chicken or vegetable broth
• 250 ml milk or coconut milk
• ¼ tsp nutmeg powder
• Salt and pepper to taste