Indian Samosas: Vegetarian for Omnivores, Part 4, Global Inspirations

Name: Indian Samosas: Vegetarian for Omnivores, Part 4, Global Inspirations
Cuisine: Asian, Indian
Ingredients: 2 cups all-purpose flour; ¾ tsp kosher salt; 4 Tbsp ghee, melted and cooled (or use avocado oil); 6 Tbsp water, plus more as needed; 2 Tbsp ajwain or nigella seeds (optional); 1 lb. waxy potatoes, peeled and quartered; 2 Tbsp vegetable oil; 1 yellow onion, minced; 2 garlic cloves, minced; 1 green chile, finely chopped; 1 tablespoon minced fresh ginger; 1 tsp garam masala; 1 tsp coriander seeds; 1 tsp cumin seeds; 1 tsp turmeric; 1/4 tsp cayenne pepper (or more to taste); 1 ½ tsp kosher salt; 1 tablespoon lemon juice; ½ cup frozen peas, thawed; ¼ cup finely chopped fresh cilantro, leaves and stems; Canola or avocado oil for frying