Thanksgiving Samosas

Name: Thanksgiving Samosas
Ingredients: 130 grams all-purpose flour (about 3/4 cup plus 2 tablespoons); 1/4 teaspoon kosher salt; 2 tablespoons grapeseed oil, plus for drizzling; 1/4 teaspoon ajwain seeds; 1/4 teaspoon nigella seeds; About 1/4 cup cold water; 1 very small red onion, finely diced; 1 serrano chile, seeded and minced; One 2-inch piece ginger, peeled and julienned; One 1-inch piece fresh turmeric, peeled and minced; 2 tablespoons grapeseed oil; 3 tablespoons dried cranberries; 3 tablespoons frozen peas; Kosher salt; 1 russet potato, cooked, peeled and mashed; 1 cup cubed cooked turkey or rotisserie chicken (1/2-inch cubes); Lime juice, for sprinkling; Chopped fresh cilantro, for sprinkling; 1 bunch cilantro, leaves and soft stems; 1/2 bunch mint, leaves only; 4 to 5 thin scallions, chopped; 1 clove garlic, peeled and chopped; 1 small thumb ginger (about 1 inch), peeled and chopped; 2 tablespoons rice wine vinegar; Juice of 1 lime; Juice of 1 Meyer lemon; 1 serrano chile, chopped (seeds and all!); 1/4 cup creme fraiche; Neutral oil, for frying; Flaky sea salt, such as Maldon