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The Science of Dum & Slow Cooking: Why Our Dal Simmers for 18 Hours

Ustad Nizamuddin Khan (Master Tandoor Craftsman)• 4 min read•Published 28 January 2026
The Science of Dum & Slow Cooking: Why Our Dal Simmers for 18 Hours

# The Science of Dum & Slow Cooking

Why does authentic Dal Makhani taste vastly superior when simmered overnight? The secret lies in the gradual breakdown of complex starches in whole black urad (lentils) and red kidney beans.

18 Hours of Ember Heating When cooked over high flame, lentil skins become tough and grainy. However, when left over low charcoal embers at 75°C to 85°C for 18 hours, the starch gelatinizes into a cream-like texture without needing synthetic thickeners.

White Butter vs. Ghee Finishing with hand-churned unsalted white butter binds the earthy spices with the mineral notes of black lentils, leaving a silky coat on the tongue that balances hot spices.

#Dal Makhani#Slow Cooking#Punjabi Flavors#Chef Tips