Savour the irresistible Ham and Cheese Croissant Sandwich! Our recipe features French cooked ham, Emmental cheese, a fried egg, and a creamy béchamel sauce, all baked au gratin for a truly satisfying bite. Discover how to make this cheesy, comforting classic.
Preheat the oven to 180 °C.
Prepare the béchamel sauce: in a saucepan, heat the milk with the rosemary sprig over a low heat. Cover and set aside. In another saucepan, melt the butter over a low heat. Add the flour all at once and mix well until you obtain a roux. Remove the rosemary sprig and pour the milk over the roux while whisking. Leave on a low heat until the mixture thickens. Cover with cling film and set aside.
Peel the red onions and set aside a few slices.
Fry your eggs.
Cut the croissants in half. Spread a large spoonful of béchamel sauce, add the grated Emmental cheese and an egg. Add a few slices of red onion and season to taste. Close the croissant, sprinkle with more Emmental cheese and bake for 3 minutes to brown.