Ingredients:
- 5 lbs Russet potatoes, peeled and cut into halves or quarters
- 1 tbsp Kosher salt
- 1/2 tsp Baking soda
- 1/2 cup Duck fat
- 2 tbsp Semolina
- 4 sprigs Fresh Rosemary
- 6 cloves Garlic, smashed
- 1 tsp Flaky sea salt
Instructions:
- Place the prepared potatoes in a large pot and cover with cold water by at least one inch. Add 1 tablespoon of kosher salt and 1/2 teaspoon of baking soda.
- Bring the water to a boil, then reduce to a simmer. Cook for 10-12 minutes until the exterior of the potatoes is soft and flaking, but the centers remain firm.
- Drain the potatoes into a colander and allow them to steam-dry for at least 2 minutes to remove excess moisture.
- Return the potatoes to the pot. Sprinkle with 2 tablespoons of semolina and shake the pot vigorously to roughen the edges and create a starchy paste on the surface.
- While the potatoes are parboiling, place a heavy-duty roasting pan with the duck fat into a 400°F (200°C) oven until the fat is shimmering and slightly smoking.
- Carefully add the potatoes to the hot fat, turning each one to ensure a thorough coating. Roast for 30 minutes, then turn each potato.
- Add the 6 smashed garlic cloves to the pan. Return to the oven for another 20 to 25 minutes until the potatoes are deep mahogany and sound hollow when tapped.
- In the last 5 minutes of roasting, toss in the 4 sprigs of rosemary. Finish with a dusting of flaky sea salt before serving.