24 September 2026
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THE UNIVERSAL GASTRONOMY AUTHORITY
World Kitchen Journal
Grilled Purple Sweet Potato Salad
Technique
By Claire Beaumont, the Technique desk · Brazil · 1 min ·

Grilled Purple Sweet Potato Salad

This grilled purple sweet potato salad, inspired by author T Kira Māhealani Madden’s farm stay in Hawai‘i, is smoky and nutty with blistered potatoes and a mayo-based dressing punched up with toasted sesame seeds and plenty of lemon.

Ingredients · Servings 4
  • 2 lb. purple sweet potatoes, peeled
  • ½ tsp. Diamond Crystal or ¼ tsp. Morton kosher salt, plus more
  • 1 Tbsp. white sesame seeds, plus more for serving
  • 1 garlic clove, finely grated
  • ½ cup mayonnaise
  • 1 Tbsp. finely grated lemon zest
  • 1 Tbsp. soy sauce
  • 1 tsp. freshly ground pepper
  • 1 tsp. sugar
  • 1 tsp. toasted sesame oil
  • 2 Tbsp. extra-virgin olive oil
  • Thinly sliced scallions (for serving)
Method · 50 min
  1. Place 2 lb. purple sweet potatoes, peeled, in a large pot and pour in water to cover. Season with kosher salt and bring to a simmer; cook until almost tender, 18–25 minutes. Drain and let sit until dry and cool enough to handle. Slice in half lengthwise and place on a rimmed baking sheet.
  2. Meanwhile, toast 1 Tbsp. white sesame seeds in a dry small skillet over medium, stirring occasionally, until deep golden brown, 5–7 minutes. Transfer to a mortar and pestle and let cool. Coarsely crush sesame seeds. (Alternatively, you can smash with the side of a chef’s knife or with a heavy skillet.)
  3. Stir together 1 garlic clove, finely grated, ½ cup mayonnaise, 1 Tbsp. finely grated lemon zest, lemon juice, 1 Tbsp. soy sauce, 1 tsp. freshly ground pepper, 1 tsp. sugar, 1 tsp. toasted sesame oil, ½ tsp. Diamond Crystal or ¼ tsp. Morton kosher salt, and crushed sesame seeds in a small bowl.
  4. Prepare a grill for medium-high heat. Drizzle 2 Tbsp. extra-virgin olive oil over sweet potatoes, season with salt, and turn to coat. Grill, cut sides down, until deeply charred underneath, 8–10 minutes.
  5. Transfer sweet potatoes to a platter, arranging cut sides up. Using a fork, lightly crush. Spoon dressing over and top with sesame seeds and thinly sliced scallions.

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