A potato and pea curry in a thick onion-tomato sauce, lightly sweet and aromatic with whole and ground spices. It is savoury and comforting, with gentle chilli heat and a fresh coriander finish.
Warm 40.5 g vegetable oil in a wide non-stick saucepan over medium heat.
Add the whole spices for the oil (0.3 g asafoetida, 4.2 g cumin seed, 5.1 g coarsely crushed coriander seeds, 1 g bay leaf, 2.6 g cinnamon stick and 1.9 g black cardamom pod) to the hot oil and cook for a few seconds until aromatic.
Add 200 g finely chopped onion and cook for 12–15 minutes, stirring often, until soft and starting to colour.
Add 8 g finely chopped green bird's eye chilli, 9 g finely chopped garlic and 20 g finely chopped fresh ginger; cook for 2–3 minutes.
Add 100 g finely chopped tomato and 5.2 g tomato purée; cook for 5 minutes until the tomato softens.
Stir the ground spices for the sauce — the masala — into the pan: 3 g ground turmeric, 1.3 g Kashmiri chilli powder, 1.8 g ground coriander and 2.3 g freshly ground black pepper.
Add 8.4 g granulated sugar and salt to taste; stir to mix.
Add 550 g boiled, peeled and chunked potato and 100 g frozen pea; stir until coated in the masala.
Pour in 298 g water and bring to the boil.
Cover, lower the heat and simmer for 5–7 minutes, stirring once halfway and pressing some potato against the pan to thicken the sauce.
Remove from the heat and stir in 2.6 g garam masala and 30 g chopped coriander leaf.
Use about a third of the weight (0.5 g ground for a 2.5 cm piece), stirred in with the ground spices rather than fried whole, since the powder burns quickly.
Use 80% of the weight, finely shredded and browned slowly with a pinch of asafoetida. Replicates the bulk and natural sweetness in gravies without allium.
Use 15% to 20% of the weight (about 1 g for every 5 to 6 g fresh cloves). Whisk into sauces; gives a savoury, toasted garlic flavour without raw pungency.
Use 20% to 25% of the weight (1 g for every 4 to 5 g fresh). Stir into the gravy; adds peppery heat and warmth, though it misses the crisp, zesty kick of raw root.
Use 40% to 50% of the fresh tomato weight mixed with a splash of water. Imparts a deeper red colour, thicker sauce, and slightly sweeter cooked flavour.
Steep a tiny pinch (0.1 g per 2 g turmeric) in 2 tbsp warm water; use to match the rich golden hue. Contributes an aristocratic, honeyed floral flavour rather than earthy bitterness.
Use 50% of the weight and stir in near the end of cooking. Adds warmth and depth since it contains ground coriander, but introduces stronger spices like clove and cinnamon.
Use 50% of the weight mixed with equal parts ground coriander and a pinch of ground cinnamon, ground cloves, and ground green cardamom. Sprinkle near the end for a warming finish.