Boil the potatoes: Add diced potatoes to salted water and boil until tender, about 10–12 minutes.
Drain well and lightly mash so there are some small chunks.
Sauté the aromatics: Heat 1 tablespoon oil in a skillet over medium heat. Add cumin seeds and let them sizzle. Stir in onion, ginger, and green chilies.
Cook until the onions soften, 3–4 minutes.
Spice it up: Add ground coriander, garam masala, turmeric, ground cumin, and chili powder. Stir for 30 seconds to bloom the spices.
Combine the filling: Add the potatoes and peas. Mix well, then season with salt.
Finish with cilantro and lemon juice. Taste and adjust salt, heat, and lemon. Let the filling cool completely.
Prep the wrappers: If using spring roll wrappers, cut into 3 equal strips.
Keep covered with a damp towel to prevent drying. Mix flour and water to create a paste for sealing.
Fold and fill: Place a strip on your board. Add about 1–1.5 tablespoons filling at one end.
Fold into a triangle, alternating sides to keep the triangle shape, tucking the filling in tightly. Seal the final flap with the flour paste. Repeat.
Lightly oil: Brush or spray each samosa with a thin layer of oil.
This helps the wrappers blister and brown in the air fryer.
Air fry in batches: Preheat air fryer to 375°F (190°C) for 3 minutes. Arrange samosas in a single layer with space between them. Air fry 10–12 minutes, flipping halfway, until golden and crisp.
Time can vary by model, so keep an eye on them.
Make the chutney: In a small saucepan, simmer tamarind pulp with water, jaggery, cumin, coriander, and a pinch of cayenne. Cook 5–7 minutes until slightly syrupy. Stir in black salt and regular salt to taste.
Cool before serving; it thickens as it cools.
Serve: Plate the hot samosas with a bowl of tamarind chutney. Add a sprinkle of chopped cilantro or a squeeze of lemon if you like.