Try this homemade Leek & Bacon Gratin recipe the whole family will love. Made with leeks, bacon, butter and flour. Easy step-by-step instructions included.
This Leek & Bacon Gratin relies on simple, everyday ingredients such as unsalted or salted butter, all purpose flour, whole milk and of half and half. It comes together quickly and makes 4 servings, at about 404 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026