Sweet Potato Fries with Basil Yogurt Sauce from Season: Big Flavors, Beautiful Food by Nik Sharma

Ingredients

• 1 Tbsp thinly sliced scallions for garnish
• ½ tsp flaky sea salt, such as Maldon
• 1 lb [455 g] sweet potatoes
• ¼ cup [60 g] plain full-fat Greek yogurt
• ½ tsp fine sea salt
• 1 Thai chile, seeded, if desired
• ½ tsp freshly cracked black pepper
• 1½ Tbsp fresh lime juice
• ½ ripe avocado
• ½ cup [120 ml] chilled water, plus more as needed
• 1 tsp dried red chili flakes
• 2 Tbsp extra-virgin olive oil
• 4 black peppercorns
• 1 cup [12 g] fresh basil leaves
• 1 bunch [85 g] scallions (white and green parts)