Level 2 — Technique
Caramelising Onions — The Long Way
Caramelised onions are not the same as browned onions — they are a completely different ingredient. Properly caramelised onions (25-35 minutes of medium-low heat) are sweet, jammy, deeply brown, and intensely savoury. They are the foundation of korma, the base of biryani birista, and the depth behind Mughal-style cooking.
Raw onion is approximately 89% water — removing this water takes time. The Maillard reaction and caramelisation both require the absence of water. The patience is chemical necessity, not tradition.
1
Slice onions thinly and evenly
2-3mm slices. Uneven thickness means some pieces burn while others remain raw.
🔬 Thin slices have less water to lose — they dehydrate and begin browning faster.
2
Start on medium heat with sufficient fat
3-4 tablespoons fat for 2 large onions. Start on medium, not medium-high.
🔬 Sufficient fat ensures even heat distribution. Medium heat allows slow water evaporation before browning.
3
Do not rush — 25-35 minutes minimum
Stir every 3-4 minutes. Do not add water. Do not increase heat.
🔬 Water addition or high heat produces boiled onions — they soften but never caramelise. Maillard requires above 150°C, impossible while water present.
⚠ Rushing with high heat burns outside while interior remains raw.
4
For birista — deep fry instead
Slice very thin (1-2mm), deep fry at 160-170°C until golden, drain immediately.
🔬 Deep frying removes water rapidly and produces the crispy caramelised strips used in biryani.
Dietary Variants
Works for every diet
🥩Non-Veg
Identical — base for all meat curries
🌱Vegan
Use oil instead of ghee
🟡Jain
Onion not Jain-permitted. Skip entirely. Use extra tomato and ginger for body.
🔴Sattvic
Onion not sattvic. Skip. Slow-cooked tomato and ginger provides body.
Recipes Using This Technique
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