Punugulu
పునుగులు·(poo-noo-goo-loo)
Midwest Winter Fermentation: The Instant Pot South Indian Base
A Western culinary mindset might look at a batch of four-day-old, profoundly sour idli batter and see spoilage, but an Andhra grandma sees prime real estate. Punugulu is the ultimate act of delicious frugality, a deeply savory fritter that transforms highly fermented, leftover lentil-rice batter into the most sought-after weeknight snack. The intense heat of the frying oil mellows that aggressive lactic tang, while raw cumin, ginger, and serrano chilies introduce bright, aromatic fireworks. The secret here isn't a complex spice blend; it's recognizing that time, temperature, and fermentation are ingredients themselves.
Before you start
Start with properly fermented batter.
The magic of punugulu requires dosa or idli batter that is at least three or four days old and noticeably sour.
Ingredients
- leftover idli or dosa batter2 cup
- all-purpose flour1/4 cup
- rice flour2 tbsp
- semolina1 tbsp
- red or yellow onion1/2 med
- serrano peppers2 med
- fresh ginger1 tbsp
- whole cumin seeds1 tsp
- fresh curry leaves10 med
- fresh cilantro2 tbsp
- kosher salt1/2 tsp
- baking soda1/8 tsp
- neutral oil1 qt
Method
- 01
Fortify and aerate the batter.
In a large bowl, combine the sour batter, all-purpose flour, rice flour, and semolina. Vigorously beat the mixture by hand or with a sturdy whisk for 1 to 2 minutes to trap air pockets, ensuring a light interior.
- 02
Mix in the aromatics.
Fold in the onion, serranos, ginger, cumin, curry leaves, cilantro, salt, and baking soda. Let the batter rest on the counter for 10 minutes to hydrate the flours.
- 03
Heat the frying oil.
Pour at least 2 inches of neutral oil into a heavy-bottomed Dutch oven or kadai and heat to 350°F to 365°F over medium heat.
- 04
Drop the batter.
Wet your fingertips slightly, pinch a walnut-sized portion of batter, and carefully slide it into the hot oil using your thumb. Fry 6 to 8 punugulu at a time, being careful not to overcrowd the pot.
- 05
Fry until deeply golden and crisp.
Leave them untouched for the first minute to set the crust, then agitate gently with a spider skimmer to ensure even browning. Fry for 3 to 4 minutes total, then transfer to a wire rack or paper towels.
Notes
Manage the hydration.
Dosa batter is naturally too loose to fry directly. Binding it with all-purpose flour gives it a spherical shape, while rice flour inhibits oil absorption and delivers a glass-like crunch.
Do not skip the aeration.
Modern shortcuts rely heavily on baking soda, but vigorously beating the batter by hand introduces microscopic air pockets into the dense urad dal mucilage, resulting in a lighter, more digestible fritter.