A classic French Croque Madame with a delicious twist! Instead of the traditional béchamel sauce, we're using a creamy, cheesy sour cream mixture for a quick and flavorful result. Topped with a perfectly fried egg, this sandwich is a showstopper for breakfast, lunch, or dinner!
Prepare the creamy topping:
In a small bowl, mix 2 tbsp sour cream, 1 tbsp heavy cream, and 2 tbsp grated Parmesan until smooth. Set aside.
Assemble the sandwich:
Spread 1 tbsp mustard on one side of each bread slice. Layer 3 slices of ham on one slice, followed by 3 slices of cheese. Place the second slice of bread, mustard side down, on top to form a sandwich.
Add the topping:
Spread the sour cream mixture evenly over the top of the sandwich. Place the remaining 2 slices of cheese on top for extra gooeyness.
Bake:
Place the sandwich on a baking sheet and bake in a preheated oven at 180°C (350°F) for 7 minutes. Then, switch to the top grill (broiler) setting and bake for an additional 3 minutes until the cheese is golden and bubbly.
Fry the egg:
While the sandwich is baking, heat a frying pan over medium heat. Fry the egg sunny-side up (or to your preferred doneness) with a pinch of salt.
Assemble the Croque Madame:
Remove the sandwich from the oven and place the fried egg on top like a fancy hat! Serve immediately with a side salad or crispy fries for a perfect meal.