Saxe-Coburg Soup

Ingredients

• 4 cups vegetable stock
• 1 ½ cups whole milk
• 6 tablespoons unsalted butter
• 1 ½ cups heavy cream
• 1 large yellow onion (, chopped)
• 1 tablespoon white sugar
• ½ cup sherry
• 2 medium potatoes (, peeled and diced)
• 1 ½ pounds Brussels sprouts (, trimmed, chopped and blanched in boiling water for 2 minutes)
• 4 tablespoons flour ((regular or gluten free))