Try this homemade Buttermilk Blue Potatoes Au Gratin recipe the whole family will love. Made with potatoes, butter, garlic and shallots. Easy step-by-st…
This Buttermilk Blue Potatoes Au Gratin relies on simple, everyday ingredients such as butter unsalted, garlic crushed, milk at room temperature and buttermilk at room temp. It comes together quickly and makes 4 servings, at about 1121 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