Ultimate Potato Gratin
Breville Test Kitchen

Breville Test Kitchen

Ultimate Potato Gratin

Blankets of creamy potato baked until bubbling and golden brown, this classic accompaniment is the ultimate comfort food.
the Smart Oven® Air Fryer Pro
the Smart Oven® Air Fryer Pro Product Details

the Smart Oven® Air Fryer Pro

+2 more appliances


1 hr 35 mins total time

20 mins active time


Serves 8



  • russet potato icon
    3 lb russet potatoes

    washed, peeled

  • heavy cream icon
    1 cup (8 fl oz) heavy cream
  • kosher salt icon
    1 tsp kosher salt
  • freshly ground black pepper icon
    ½ tsp freshly ground black pepper
  • fresh thyme leaves icon
    2 tsp fresh thyme leaves
  • clove garlic icon
    1 clove garlic


  • finely grated Gruyere cheese icon
    ½ cup (2 oz) finely grated Gruyere cheese
  • cracked black pepper icon
    Cracked black pepper

    to serve

  • chopped chives icon
    Chopped chives

    to serve


  • 1Using a mandoline, cut the potatoes into 1/8-inch thick slices and place in a bowl.
  • 2Add the cream, salt, pepper, thyme and garlic to the potatoes and mix to coat.
  • 3Layer the potatoes in a 8-inch square baking dish. Pour over the cream that is left in the bowl and sprinkle with the cheese. Cover with a sheet of parchment paper then foil. The parchment paper stops the cheese sticking to the foil.
  • 4Insert the wire rack into position 6. Set the oven to Bake, Convection, 350°F, for 1 hour 15 minutes, confirm Rotate Remind and press Start to preheat.
  • 5Once preheated, place the dish in the oven and cook for 1 hour 15 minutes. When the Rotate Remind signals, rotate the dish, remove the foil and parchment paper and continue cooking. 
  • 6The gratin should be golden brown. If not, cook it a little longer.
  • 7Sprinkle with cracked pepper and chives and serve. 
Side dish/Accompaniment
Gluten Free

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