Sopa de Cebola: Brazilian Comfort Onion Soup

🌍 Cuisine: Brazilian
🏷️ Category: Soups & Broths
⏱️ Prep: 20 minutes
🍳 Cook: 50-60 minutes
👥 Serves: 4-6 servings

📝 About This Recipe

A beloved staple of São Paulo's late-night culinary scene, particularly famous at the Ceagesp food festival, this Brazilian-style onion soup is a velvety, golden masterpiece. Unlike its thinner French cousin, the Brazilian version often boasts a richer, creamier body achieved through a light roux and a generous gratinated layer of local cheeses. It is the ultimate soul-warming dish, balancing the deep sweetness of caramelized onions with a savory, beefy backbone and a crusty bread topping.

🥗 Ingredients

The Onion Base

  • 1.2 kg Yellow Onions (thinly sliced into half-moons)
  • 4 tablespoons Unsalted Butter (high quality)
  • 2 tablespoons Extra Virgin Olive Oil
  • 1 teaspoon Granulated Sugar (to assist caramelization)

The Broth & Thickener

  • 3 tablespoons All-purpose Flour
  • 1/2 cup Dry White Wine (or a splash of dry Sherry)
  • 1.5 liters Beef Stock (homemade or low-sodium store-bought)
  • 2 pieces Bay Leaves
  • 3 cloves Garlic (minced)
  • to taste Salt and Black Pepper (freshly cracked pepper)
  • 1 pinch Nutmeg (freshly grated)

The Gratin Topping

  • 1 loaf French Baguette (sliced into 1-inch thick rounds)
  • 200 grams Queijo Meia Cura or Gruyère (grated)
  • 1/2 cup Parmesan Cheese (finely grated)

👨‍🍳 Instructions

  1. 1

    In a large, heavy-bottomed pot or Dutch oven, melt the butter with the olive oil over medium-low heat.

  2. 2

    Add the sliced onions and stir to coat them thoroughly with the fats. Sprinkle the sugar and a pinch of salt over the onions.

  3. 3

    Cook the onions slowly for 35-45 minutes, stirring every 5-10 minutes. You are looking for a deep mahogany color, not just a golden brown. If they stick too much, add a tablespoon of water.

  4. 4

    Once the onions are deeply caramelized, add the minced garlic and cook for another 2 minutes until fragrant.

  5. 5

    Sprinkle the flour over the onions and stir constantly for 3 minutes. This creates a roux that will give the Brazilian soup its characteristic silky thickness.

  6. 6

    Deglaze the pot by pouring in the white wine. Scrape the bottom of the pot with a wooden spoon to release all the flavorful brown bits (the fond).

  7. 7

    Slowly pour in the beef stock while stirring. Add the bay leaves and a pinch of nutmeg.

  8. 8

    Increase the heat to medium-high and bring to a gentle boil, then reduce to low and simmer for 20 minutes to allow the flavors to meld.

  9. 9

    While the soup simmers, preheat your oven to 400°F (200°C). Arrange the baguette slices on a baking sheet and toast for 5 minutes until crisp.

  10. 10

    Taste the soup and adjust the seasoning with salt and plenty of freshly cracked black pepper. Remove the bay leaves.

  11. 11

    Ladle the hot soup into individual oven-safe bowls (crocks). Place one or two toasted bread slices on top of each bowl.

  12. 12

    Generously cover the bread and the surface of the soup with the grated Meia Cura (or Gruyère) and Parmesan cheese.

  13. 13

    Place the crocks on a baking sheet and broil in the oven for 3-5 minutes, or until the cheese is bubbly and develops golden-brown spots.

  14. 14

    Carefully remove from the oven and let sit for 2 minutes before serving—the bowls will be extremely hot!

💡 Chef's Tips

Low and slow is the secret; rushing the onions will result in a bitter taste rather than a sweet, complex base. For a truly authentic 'Ceagesp' experience, use a mix of beef and chicken stock for a lighter yet savory profile. If you can't find Brazilian Meia Cura cheese, a mix of Monterey Jack and Parmesan provides a similar melt and tang. Always use a heavy-bottomed pot to ensure even heat distribution and prevent the sugar in the onions from burning. Make the soup a day in advance; the flavors deepen significantly after a night in the refrigerator.

🍽️ Serving Suggestions

Pair with a robust Brazilian Cabernet Sauvignon or a chilled Pilsner beer. Serve with a side of mixed green salad tossed in a light vinaigrette to cut through the richness of the cheese. A small glass of Cachaça as an aperitif sets the perfect Brazilian mood. For extra indulgence, add a poached egg into the soup bowl just before adding the bread and cheese. Offer extra red pepper flakes on the side for those who like a touch of heat.