Remove the superior part of the bread from a cavity. Remove the crumb, then dice.
Heat olive oil in a pan over medium heat. Cook the leek for 4 to 5 minutes while stirring.
In a bowl, whip eggs. Add leek, bacon, cheddar, diced crumb, and, if desired, chive. Salt and pepper.
Lay the bread on a cooking sheet covered with parchment paper. Divide the egg mixture into the bread cavity. Bake in the oven for 28 to 30 minutes, until the eggs take form.
Did you know that...
Leeks are full of antioxidants and great for fighting cholesterol and cancer.