2 medium Yukon Gold potatoes (12 ounces; 350g), peeled, quartered, and cut into 1/2-inch-thick slices
2 tablespoons (18g) plus 1 teaspoon (3g) Diamond Crystal kosher salt, divided, plus more to taste; for table salt, use half as much by volume or the same weight
2 tablespoons (30ml) distilled white vinegar
2 quarts (1.9L) vegetable oil, for frying
1 medium head cauliflower (1 pound; 450g), trimmed and cut into 2-inch florets
2 teaspoons cumin seeds
1 small yellow onion (4 ounces; 110g), diced
One 2-inch knob fresh ginger (1/3 ounce; 10g), peeled and cut into matchsticks
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