Gratinated Pasta with Onion Soup

Gratinated Pasta with Onion Soup is a medium French recipe that serves 4. 550 calories per serving. Recipe by 750g on YouTube.

Prep: 30 min | Cook: 40 min | Total: 1 hr 25 min

Cost: $9.47 total, $2.37 per serving

Ingredients

  • 400 g Pasta (penne or fusilli) (Cook al dente)
  • 2 Yellow onions (Coarsely sliced)
  • 2 Garlic cloves (Crushed to rub the bread)
  • 30 g Butter (Unsalted)
  • 30 ml Olive oil (A drizzle to prevent the butter from burning)
  • 8 g All-purpose flour (To thicken the sauce)
  • 5 g Sugar (A pinch to aid caramelization)
  • 500 ml Beef broth (Prepared from cube or liquid)
  • 200 g Comté cheese (Grated, 150 g for the sauce + 50 g for the gratin)
  • 4 slice(s) Country bread (Thick slices, to grill on top)
  • 1 sprig Fresh thyme (Added to the sauce)
  • Salt (To adjust)
  • Black pepper (To adjust)

Instructions

  1. Cooking the pasta

    Bring a large pot of water to a boil, add the beef broth cube, lightly salt, then plunge the raw pasta. Cook about 10 minutes until al dente.

    Time: PT10M

    Temperature: high heat

  2. Preparing the onions

    Peel the yellow onions and coarsely slice them. To reduce tears, place the knife blade under a stream of water while cutting.

    Time: PT10M

  3. Grating the cheese

    Grate the block of Comté (or Gruyère) into two parts: 150 g for the sauce, 50 g for the final gratin.

    Time: PT5M

  4. Caramelizing the onions

    Melt the butter with a drizzle of olive oil in the pan over medium heat. Add the sliced onions, salt, pepper and cook gently, stirring continuously until they turn a beautiful golden color (15‑20 minutes). Add a pinch of sugar at the end of cooking to promote caramelization.

    Time: PT20M

    Temperature: medium heat

  5. Thickening the sauce

    Sprinkle the flour over the caramelized onions, stir quickly for 1 minute to cook the flour, then pour in the hot beef broth. Bring to a gentle boil, add the thyme, then incorporate the cooked pasta. Let simmer 5 minutes so the sauce coats the pasta.

    Time: PT6M

    Temperature: medium heat

  6. Preparing the bread

    Lightly brush each slice of country bread with a drizzle of olive oil, then rub each side with the crushed garlic clove for flavor.

    Time: PT5M

  7. Assembling the gratin

    Pour the pasta‑onion mixture into the gratin dish, smooth the surface, sprinkle the first third of the grated cheese, place the bread slices on top, then add the remaining cheese.

    Time: PT5M

  8. Gratinating

    Place the dish under the preheated oven grill and let it brown for 3‑5 minutes, until the cheese is melted and golden and the bread is crispy.

    Time: PT5M

    Temperature: 200°C (grill)

  9. Serving

    Remove the dish from the oven, let rest 2 minutes, then serve hot.

    Time: PT2M

Nutrition Facts

Calories
550
Protein
20 g
Carbohydrates
70 g
Fat
20 g
Fiber
4 g

Dietary info: Contains dairy, Contains gluten

Allergens: Lactose, Gluten

Last updated: April 7, 2026

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Gratinated Pasta with Onion Soup

Recipe by 750g

A comforting and simple version of onion soup, turned into a baked pasta dish with Comté cheese, country bread, and caramelized onions. Ideal for winter evenings.

MediumFrenchServes 4

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
27m
Prep
41m
Cook
10m
Cleanup
1h 18m
Total

Cost Breakdown

$9.47
Total cost
$2.37
Per serving

Critical Success Points

  • Caramelize the onions until a deep golden color.
  • Incorporate the flour without forming lumps.
  • Gratin under the grill without letting it burn.

Safety Warnings

  • Handle hot oil carefully to avoid splatters.
  • The oven grill becomes very hot: use kitchen gloves.

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