India · Lamb
Lamb Rogan josh
About this recipe
This recipe comes from a regional cooking tradition that draws on its own pantry, technique, and culinary history. The full editorial context for this cuisine is something we're still developing; the scaling and conversion tools above work the same regardless of origin.
As a lamb dish, Lamb Rogan josh works the same braising-vs-fast-cooking divide as beef — lean cuts for hot fast cooking, tougher cuts for time-and-temperature stews where the flavour deepens.
The scaler above rewrites every measurement to your target serving count, with proper culinary fractions (½, ⅓, ¼) instead of decimals so the recipe stays measurable. Cook Mode steps you through it hands-free.
Recipe data is sourced from TheMealDB's open community database; ScaleRecipe handles the curation, the scaling math, the editorial commentary, and the conversion utilities woven into each page.
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Method
- Put the onions in a food processor and whizz until very finely chopped. Heat the oil in a large heavy-based pan, then fry the onion with the lid on, stirring every now and then, until it is really golden and soft. Add the garlic and ginger, then fry for 5 mins more.
- Tip the curry paste, all the spices and the bay leaves into the pan, with the tomato purée. Stir well over the heat for about 30 secs, then add the meat and 300ml water. Stir to mix, turn down the heat, then add the yogurt.
- Cover the pan, then gently simmer for 40-60 mins until the meat is tender and the sauce nice and thick. Serve scattered with coriander, with plain basmati or pilau rice.
Cooking notes
When scaling protein-led dishes, weigh the meat rather than counting pieces, and remember that the pan size limits how much you can sear at once.
For volume-to-weight conversions of any ingredient — flour, sugar, butter, salts — use the ingredient converter. To translate the recipe's oven temperature between °C, °F and gas mark, see the temperature converter.
When you scale this recipe up or down, remember that cooking time does not scale linearly. A doubled cake takes longer, but not twice as long; a doubled soup takes roughly twice as long. The cooking-time guide gives sensible starting estimates by dish geometry.
Scaling notes
Scaling Lamb Rogan josh
Lamb Rogan josh is written for around four servings as it stands on this page — scaling it up for a party or down for a meal-for-one is the small math problem most home cooks face every week. Here's how this particular dish responds to scaling, what changes linearly, and what doesn't.
Lamb cooks similarly to beef but is leaner, which means scaling Lamb Rogan josh up calls for slightly longer rest time after cooking (proportional to thickness, not mass). Braises and stews scale linearly; roasts follow the cube-root rule — doubling a lamb leg adds about a quarter to the cook time, not double.
The seasoning here is the most non-linear thing to scale. At 2× the recipe, use 1.5× the spices and salt; at 3×, use 2×; at 4×, use 2.5×. Doubling spices linearly is the most common reason a scaled-up batch tastes harsher than the original — flavour intensity compounds with volume.
Skip the math entirely — ScaleRecipe's scaler rewrites every ingredient line above with proper culinary fractions and smart unit promotion the moment you change the serving count. Open the scaler →
Beyond the recipe
Substitutions & make-ahead — Lamb Rogan josh
Two things home cooks ask about most when they're outside the recipe's exact assumptions: what swaps work for which ingredients, and how the dish behaves when you make it ahead. Both depend on what Lamb Rogan josh is doing structurally — here's the practical version.
Substitution ideas
Yogurt
Plain yogurt → sour cream or labneh for thicker applications; or buttermilk for thinner sauces and marinades. Dairy-free yogurts (cashew, coconut, soy) all work for cooking applications — match fat content to the original.
For weight-based swaps and arbitrary quantities, the ingredient density converter and the cup-to-grams chart cover most pantry staples.
Make-ahead and storage
Lamb behaves like beef for storage — braises and stews like Lamb Rogan josh (when it's in that family) improve overnight as the spice and acid components marry. Refrigerate in a wide shallow container; reheat gently with a splash of the cooking liquid. The stronger flavour signature lamb carries mellows during storage, which can be a feature (a milder leftover the next day) or a bug (the original character gets muted) depending on what you're after.
Recipe video
Lamb Rogan josh
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Cooking aids
Tools to use while you cook this.
Each opens in a new tab so the timer keeps running. The math is auditable on the guide page below each converter, with worked examples and where the numbers come from.
Volume
Tablespoons, teaspoons, cups, ml, fluid ounces — every culinary volume unit, with US/metric/imperial cups handled distinctly.
OpenWeight
Grams, ounces, pounds, kilograms — exact for any ingredient, plus the volume-to-weight conversions for ~40 pantry staples.
OpenTemperature
Fahrenheit, Celsius, gas mark — translate any oven temperature, with notes on conventional vs convection.
OpenCooking time
The cube-root rule for scaling up, the differences between meat / cake / soup geometry, and sensible starting estimates.
OpenPan size
9-inch round vs 8-inch square vs 13×9. The math is surface area, not diameter — and the converter shows you both.
OpenLength
Inches and centimetres — for when a recipe says “cut into 1-inch pieces” and your ruler is metric.
OpenIngredient density
A cup of flour weighs 120 g; a cup of honey weighs 340. The full table of ~40 staples, with sources.
OpenOpen in main scaler
Edit the recipe text, scale by serving count, and copy the result. Same parser as the in-page scaler, more room to work.
OpenFrom the journal
Original essays on the small details.
The why behind the technique — original writing on the ingredient and equipment choices that separate a good cook from a frustrated one.
Reading a recipe like a chef
The 30-or-so recipe terms that show up most often, decoded
Read essayMay 4, 2026
Cooking for one — scaling principles
The math, the practical realities, and the recipes designed for one from the start
Read essayMay 4, 2026
How long do leftovers actually last?
Beyond the USDA's 3–4 days: the variables that actually determine the safe window
Read essayMay 4, 2026
Go deeper
Where this recipe sits in the wider tradition.
Each guide below is a real essay on the cuisine or the category — pillars, staples, techniques worth learning — paired with a curated grid of recipes filed under it.
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