Urad dal comes from black gram, known as adad in Gujarat, ulundu in Tamil and split black gram in English. Sold in this split white form, the black skin has been removed and the lentil dehusked, leaving a pale ivory seed with a mild taste.

What sets urad apart from every other Indian dal is what it does in a batter. The lentil is unusually high in mucilage, a natural compound that becomes sticky and elastic when ground with water. That elasticity is what holds fermentation gas inside the batter instead of letting it escape. Toor, moong and masoor simply cannot do this, which is why every traditional idli and dosa recipe specifies urad and no substitute.

Grinding matters as much as the dal itself. Urad should be ground to a light, fluffy paste with cold water added slowly. Overheating during grinding damages the mucilage and the batter will not rise, however long it ferments.

As a dal on its own, urad cooks thick and creamy rather than pouring. It is the base of dal makhani when used whole with skin, and of the simple South Indian dal served with rice when used split like this.

How to Identify Best Quality Urad Dal in India

• Even ivory to pale cream colour with no yellowing or grey patches
• Uniform split size, so the batch soaks at the same rate
• Matte surface with no oily film or slippery feel
• Very few broken pieces or powder at the bottom of the pack
• Soaked dal that grinds to a fluffy, sticky paste rather than a grainy one

Urad Dal Nutrition and Benefits

Urad is one of the more protein-dense pulses in Indian cooking, which is why it features so heavily in South Indian vegetarian meals.

• Contributes to daily protein intake in vegetarian diets
• Dietary fibre supports digestion
• Carries iron, folate, magnesium and potassium
• Fermenting urad in a batter improves nutrient availability
• Paired with rice in idli and dosa, it forms a complete protein combination

This is general nutritional information and not medical advice.

How to Make Idli and Dosa Batter

Ratio and grinding technique decide the outcome more than fermentation time.

• Rinse the urad dal two to three times until the water runs clear.
• Soak for 4 to 6 hours, along with a teaspoon of methi seeds. Soak rice separately.
• Grind the urad first with cold water added a little at a time. The paste should be light, fluffy and sticky.
• Grind the rice separately to a slightly coarse texture, then combine both by hand.
• Add salt, mix well and leave to ferment for 8 to 12 hours in a warm place.
• The batter is ready when it has risen visibly and smells pleasantly sour.

Standard ratio is 1 part urad dal to 3 parts rice for idli, and 1 to 4 for a crisper dosa. In cold weather, ferment inside a switched-off oven with the light on.

How to Cook Urad Dal as a Dal

• Rinse two to three times until the water runs clear.
• Soak for 30 minutes.
• Pressure cook with roughly 1 cup dal to 3 cups water and a pinch of haldi.
• Cook for 4 to 5 whistles on medium flame, then let the pressure release on its own.
• Add salt once soft, then finish with a tadka of jeera, hing, lahsun and red chilli.

Dishes That Use Urad Dal

• Idli and dosa batter
• Medu vada and dahi vada
• Uttapam and appam
• Papad
• South Indian urad dal with rice
• Urad dal tadka
• Dal vada and bhajiya
• Tempering for South Indian sabzis and chutneys

How to Store Urad Dal

Transfer the dal to a clean, airtight container after opening and keep it in a cool, dry place away from sunlight and away from the stove. Urad loses its grinding quality faster than most dals. Older stock still cooks fine as a dal but produces a batter that rises poorly, so use within four to six months if idli and dosa are the main purpose. A few dried red chillies or neem leaves in the container work as a traditional pest deterrent.

Which Urad to Use for What

Urad comes in three forms and they are not interchangeable.

Split white urad, dehusked, is what this pack contains. It is the form used for idli, dosa, vada and everyday dal.

Split urad with skin, chilka urad, keeps the black husk on the split lentil. Higher in fibre, used in Punjabi style dals.

Whole black urad, sabut urad, keeps the seed intact with its skin. This is the base of dal makhani and needs a long slow cook.