01 -
Set the oven to 220°C and place a large roasting pan inside to preheat thoroughly.
02 -
In a stock pot, bring water to a boil and add baking soda and kosher salt. Add potatoes and boil for 10 minutes until edges begin to soften but centers remain firm.
03 -
Drain the potatoes thoroughly and shake them gently in the colander to roughen the surfaces, creating nooks for crispiness.
04 -
Carefully remove the hot roasting pan from the oven, add duck fat, and allow it to heat until shimmering. Add potatoes to the pan and toss to coat evenly.
05 -
Return the pan to the oven and roast the potatoes for 50 to 60 minutes, turning occasionally to promote even browning and crispness.
06 -
If roasting whole garlic, squeeze roasted cloves and combine with chopped rosemary and extra virgin olive oil. Alternatively, mix finely chopped garlic with rosemary for addition in the final stage.
07 -
Five minutes before finishing, remove the potatoes from the oven and toss with the garlic-rosemary mixture, then return to roast to infuse flavors without burning herbs.
08 -
Remove from the oven, sprinkle with flaky sea salt, and serve immediately alongside your preferred main dishes.