Festive Duck Fat Roast Potatoes

Cooking Time 45 minutes

Serves 6-8


  • 100g duck fat
  • 1 pack fresh sage
  • 1kg Royal Blue potatoes, peeled and cut into 4cm pieces
  • 1 tsp bicarb soda
  • 1 tsp sea salt

Blue Potatoes

Red Potatoes


It’s the ultimate in decadent dining. Nothing beats a festive duck fat potato with plenty of salt and some crispy sage. While we all know this probably isn’t an everyday food, it’s certainly a recipe to break out when you’re entertaining through the festive season and when you’re serving up a roast dinner to the family.

  1. Preheat oven to 210°C fan forced
  2. Place the duck fat in a roasting pan, then place the pan in the oven for 5 minutes to heat,
  3. Add sage and cook until crispy (5 mins).
  4. Remove pan from oven and allow sage to infuse into the fat whilst waiting for the potatoes to boil.
  5. Place peeled potatoes in a large pot of salted cold water. Add bicarb soda and bring to a boil.
  6. From boiling point, par cook potatoes for 6 minutes.
  7. Drain, then return potatoes to the pan and shake well over medium heat to dry out and rough up the edges ,this will help them crisp up when roasting.
  8. Remove sage from fat and reserve for garnishing.
  9. Carefully add potatoes to the warm duck fat and gently toss to coat.
  10. Return to the oven and roast, turning twice, for 35 minutes or until golden and crisp.
  11. Sprinkle with salt and serve sprinkled with crisp sage.

You could also cook your roasties in pig lard, however we found duck fat gave the superior crispiness!

TIP: The Bicarb Trick - Baking soda breaks down the pectin in the potato and draws starch to the surface giving you lovely browning and a crispiness you wouldn't otherwise achieve.

About This Recipe

Festive duck fat roast potato with plenty of salt and some crispy sage.

If you like this, make sure you try:

Bronwyn Fox’s Roast Potatoes

0 0 votes
Recipe Rating

1 Comment
Newest Most Voted
Inline Feedbacks
View all comments
4 months ago

We made these on the weekend and they tastes amazing. The sage is a great addition.