Beef Strips with Creamy Cheese Gratin Sauce

Name: Beef Strips with Creamy Cheese Gratin Sauce
Prep time: 30 min
Total time: 30 min
Yield: 6 servings
Cuisine: Française
Ingredients: 700 g (1.5 lb) rump steak or sirloin; Salt and freshly ground black pepper; 2 garlic cloves, minced; 2 tablespoons vegetable oil; 3 tablespoons butter; ½ cup (125 ml) whole milk; 250 g (9 oz) cream cheese or soft processed cheese; 2 tablespoons cornstarch; 3 tablespoons cold water; 50 g (2 oz) grated gruyère or parmesan; ¾ cup (200 ml) heavy cream; 1 beef bouillon cube

By Marie Lefebvre · Updated October 27, 2026

Seared golden beef strips smothered in a velvety melted cheese sauce and broiled to a bubbling, irresistible gratin. A hearty and comforting dinner that comes together in just 30 minutes — perfect for the whole family!

Prep⏱️ 30 min

Servings👥 6 servings

Difficulty📊 Easy

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🛒 Ingredients

6 servings

700 g (1.5 lb) rump steak or sirloin
Salt and freshly ground black pepper
2 garlic cloves, minced
2 tablespoons vegetable oil
3 tablespoons butter
½ cup (125 ml) whole milk
250 g (9 oz) cream cheese or soft processed cheese
2 tablespoons cornstarch
3 tablespoons cold water
50 g (2 oz) grated gruyère or parmesan
¾ cup (200 ml) heavy cream
1 beef bouillon cube

🛍️ Recommended tools

🥩Poêle fonteSee on Amazon →🌡️Thermomètre sondeSee on Amazon →🔪Couteau de chefSee on Amazon →

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Directions

1
Slice the beef into thin strips. Season with salt, pepper and minced garlic. Let marinate for 10 minutes at room temperature.
2
Heat the oil in a large skillet over high heat. Sear the beef strips in batches until golden brown on all sides. Transfer to an oven-safe dish and set aside.
3
In a saucepan, melt the butter over medium heat. Crumble in the bouillon cube, then add the milk and cream cheese. Whisk continuously until the sauce is smooth and lump-free.
4
Bring to a gentle simmer, then stir in the cornstarch dissolved in cold water. Keep whisking for 2–3 minutes until the sauce thickens and coats the back of a spoon.
5
Remove from heat. Stir in the heavy cream and half the grated cheese. Mix well until the sauce is silky and velvety.
6
Pour the cheese sauce over the beef strips. Sprinkle with the remaining grated cheese and broil at 200 °C (400 °F) for 5–7 minutes until golden and bubbling.

💡 Chef's Tip

For a deeper flavour, swap part of the milk for homemade beef broth. Serve over steamed white rice or fresh egg noodles to soak up every drop of the delicious sauce.