In a large pot, heat oil over medium-high heat. Add onions, and reduce heat to medium. Stir often until onions are soft and caramelized, approximately 20–30 minutes.
Stir in Herb & Garlic Dip Mix, then pour in sherry. Using a spoon, scrape up, and stir in any brown bits from the bottom of the pan.
Stir in Nourish Broth, and season with Salt and Pepper. Bring to a boil, then cover, and simmer to let flavours blend, approximately 15 minutes.
Just before serving, preheat broiler to high with rack in highest position. Lightly spread each baguette slice with yogurt, then sprinkle with cheese. Spread out on a crisper, and broil until golden and melted, approximately 1 minute.
Ladle soup into bowls, and top with cheesy toasts.
Per serving (1 cup): Calories 180, Fat 5 g (Saturated 1.5 g, Trans 0 g), Cholesterol 5 mg, Sodium 320 mg, Carbohydrate 25 g (Fibre 2 g, Sugars 2 g), Protein 7 g.
Add or substitute chopped leeks for onion to give your soup a creamier, mellower texture and taste.