Cut a lengthwise slit down one side of each of the 500 g okra, keeping them whole.
Warm 13.5 g vegetable oil in a large, heavy pan over medium heat. Add the tempering spices and fry for roughly 1 minute until they crackle.
Add 300 g onion, 30 g garlic, and the ground ginger, then stir-fry for around 5 minutes.
Tip in the okra and cook for another 15 minutes, turning occasionally.
Add the ground spices, 240 g tomato, and salt to taste, mixing thoroughly. Turn the heat down low, cover with a lid, and gently cook for 15 minutes, stirring from time to time so nothing catches on the bottom.
Take the pan off the heat, leaving the lid on until ready to serve.
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 300% to 400% of the weight (e.g. 3–4 g paste for 1 g ground). Fry in oil alongside onions; provides a juicy, pungent kick rather than a dry, baking-spice heat.
Peel and grate finely; use 300% to 400% of the weight. Add to the hot oil early; delivers bright, peppery warmth rather than the mellow, woody heat of dry ginger.
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.
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.
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.