Ingredients
Equipment
Method
Step-by-Step Instructions
- Prepare the leeks by trimming and rinsing the white and light green parts. Sauté in a skillet with butter and olive oil until tender and caramelized, about 25-30 minutes.
- Toast the day-old French bread cubes in a preheated oven at 350°F for about 20 minutes until golden brown.
- Whisk together eggs, whole milk, half-and-half, Dijon mustard, nutmeg, salt and pepper in a large bowl until smooth.
- Grease a baking dish with butter, layer toasted bread cubes and sautéed leeks, sprinkle with Gruyère cheese, and pour custard evenly. Let it rest for 10 minutes.
- Bake at 350°F for approximately 1.5 hours until golden brown and puffed. Test doneness with a knife.
Nutrition
Notes
Store leftovers in an airtight container for up to 3 days. Lock in freshness by freezing for up to 2 months. Reheat in the oven at 350°F for the best texture.
