Crispy Onion Dosa

Ingredients

• 1 cup urad dal (split black lentils)
• 1 cup rice
• ¼ teaspoon fenugreek seeds
• 1 teaspoon sea salt
• 1.5 cups water
• 2 whole large yellow onions
• 2 tablespoons coconut oil or neutral oil
• 1 whole green chiles
• 1 small handful fresh curry leaves
• ½ teaspoon black mustard seeds
• ½ teaspoon sea salt
• 2 tablespoons coconut oil or ghee
• 1 cup sambar (lentil stew)
• ½ cup coconut chutney

Instructions

1. 1

   Rinse 1 cup urad dal and 1 cup rice separately under cold running water until the water runs clear. Place both in a large mixing bowl. Rinse 0.25 teaspoon fenugreek seeds and add to the bowl. Cover with 1.5 cups cool water and soak for 4–6 hours at room temperature — the lentils and rice should be soft enough to crush easily between your fingers.

2. 2

   Drain the soaked ingredients in a fine-mesh strainer, discarding the soaking water. Working in batches, transfer to a wet stone grinder or high-powered blender. Grind with 0.75 cup fresh water for 4–5 minutes, adding water a little at a time, until you have a smooth, fluffy batter that resembles Greek yogurt. It should have a light, airy texture — not grainy or thick paste-like. Transfer to a large bowl.

3. 3

   Stir in 1 teaspoon sea salt and let the batter ferment at room temperature (68–72°F is ideal) for 6–8 hours or overnight. The batter should rise slightly and smell mildly sour — this fermentation is essential for the characteristic tang and crispy exterior of a proper dosa. Before cooking, gently fold the batter once or twice — do not deflate it completely.

4. 4

   Slice 2 large yellow onions lengthwise into thin 1/8-inch-thick half-moons, keeping the layers intact. Slit 1 green chile lengthwise and remove the seeds if you prefer less heat, then chop into thin rings. Strip the leaves from 1 small handful of fresh curry leaves — discard the tough stems.

5. 5

   Heat 2 tablespoons coconut oil in a 12-inch skillet over medium heat until shimmering. Add 0.5 teaspoon black mustard seeds and listen for them to begin crackling, about 1 minute. Pour in the sliced onions and scatter 0.5 teaspoon sea salt over them.

6. 6

   Sauté the onions, stirring frequently, for 10–12 minutes until they soften and turn golden brown at the edges. You're aiming for a rich caramel color — the onions should smell sweet and fragrant. Add the chopped green chile and curry leaves in the final minute, stirring just to combine. Taste and adjust salt. Transfer to a bowl and set aside — the onions can be made up to 2 hours ahead and reheated gently before serving.

7. 7

   Heat a 12-inch cast iron griddle or dosa pan (tava) over medium-high heat for 2–3 minutes until very hot — if a drop of water sizzles and evaporates immediately, it's ready. Lightly wipe the surface with an oiled cloth or brush.

8. 8

   Pour 0.75 cup of fermented batter onto the center of the griddle. Using the rounded bottom of a soup spoon or a dosa spreader, immediately begin making quick, light circular motions from the center outward, spiraling toward the edges until the dosa is about 8–9 inches in diameter and thin enough to see through in spots. The motion should be swift and confident — hesitation creates thick, uneven dosas.

9. 9

   Let the dosa cook undisturbed for 1–2 minutes until the bottom is golden and beginning to crisp at the edges. The surface should look set but still slightly moist. Drizzle 1 teaspoon of coconut oil or ghee around the edge of the dosa and underneath it if possible, using a small spoon or brush.

10. 10

    Continue cooking for another 1–2 minutes until the bottom is deep golden brown and crispy. You should hear an occasional sizzle and crackle — this is the sign of proper crisping. Flip the dosa carefully using a wide fish spatula and cook the second side for 30 seconds to 1 minute until light golden and set.

11. 11

    Transfer the dosa to a serving plate. Spread a few spoonfuls of the warm caramelized onion filling down the center of the dosa. Fold the dosa in half or into thirds, creating a neat package. Repeat steps 8–11 with remaining batter and filling, allowing 15–20 seconds between dosas for the griddle to reheat.

12. 12

    Arrange 1 or 2 folded dosas on a warm plate, with edges slightly overlapping if you like. Serve immediately with 0.25 cup warm sambar on the side for dipping and a small bowl of 2 tablespoons coconut chutney. The dosa will stay crispy for only a few minutes, so eat right away while the exterior is shatteringly crisp and the interior is still tender.

Tools you’ll need

• fine-mesh strainer
• large mixing bowl
• wet stone grinder or high-powered blender
• 12-inch skillet
• 12-inch cast iron griddle or dosa pan (tava)
• soup spoon or dosa spreader
• small spoon or brush
• wide fish spatula

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