Bangladeshi Overnight Fermented Rice Bowl

Bangladeshi Overnight Fermented Rice Bowl

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This iconic Bangladeshi breakfast features cooked rice soaked and naturally fermented in water overnight, creating a tangy, probiotic-rich dish. Eaten across rural Bangladesh, especially on Bengali New Year, it is traditionally served at room temperature with raw onion, green chili, mustard oil, and accompaniments like fried hilsa or mashed potato.

Prep Time10 mins
Cook Time20 mins
Total Time30 mins
Servings4
Yield4 servings

Nutrition Facts

Per serving (estimated)

  • 175 kcalCalories
  • 4.5 gFat
  • 0.5 gSaturated Fat
  • 30 gCarbs
  • 1 gFiber
  • 1 gSugar
  • 3.5 gProtein
  • 590 mgSodium
  • 65 mgPotassium
  • 25 mgCalcium
  • 1.2 mgIron
  • 8 mgVitamin C
  • 12 mcgVitamin A

Ingredients

For the Fermented Rice

  • 2 cups cooked white rice (preferably day-old and cooled)
  • 4 cups room-temperature water
  • 1 teaspoon salt
  • 1 tablespoon plain yogurt (optional, to speed fermentation)

For Serving

  • 1 medium onion, finely sliced
  • 2-3 green chilies, sliced lengthwise
  • 4 teaspoons mustard oil
  • ½ cucumber, sliced (optional)
  • ¼ cup fried hilsa or dried shredded fish (optional)
  • 1 boiled potato, mashed with salt (optional)

Directions

  1. Rinse rice if cooking from scratch: combine 1 cup raw white rice with 2 cups water, bring to a boil, then simmer covered 15-18 minutes until fluffy; alternatively use 2 cups of leftover day-old rice.
  2. Spread the cooked rice on a wide plate and let cool completely to room temperature so it absorbs soaking water evenly.
  3. Transfer the cooled rice into a glass, ceramic, or earthenware bowl and gently break up any clumps with a wooden spoon.
  4. Pour 4 cups of room-temperature water over the rice until fully submerged, leaving about 2 inches of water above the rice; stir in salt and optional yogurt.
  5. Cover the bowl loosely with a clean cotton cloth (never airtight) and leave at room temperature for 8-12 hours to allow natural fermentation; warm kitchens may finish in 6 hours.
  6. By morning the rice will have softened and the water will turn cloudy and slightly tangy—this is the prized probiotic-rich liquid, so don't drain it.
  7. Give the rice a gentle stir, then ladle into individual serving bowls along with the starchy soaking water.
  8. Drizzle each bowl with 1 teaspoon mustard oil and top with sliced onion, green chili, and cucumber. Serve at room temperature with optional hilsa, mashed potato, or fried lentil fritters (beguni).

Cook’s Notes

  • Use day-old cooked rice for the fastest fermentation and best fluffy texture
  • Fermentation time depends on room temperature; in hotter climates it may be sour within 6 hours, while cooler kitchens may need 14 hours
  • Never seal the bowl airtight during fermentation—a breathable cloth cover or earthenware pot gives the most authentic tangy flavor
  • The cloudy starchy soaking water is the most prized part of the dish and contains the natural probiotics; do not discard it
  • For a sharper tang, finish each bowl with a squeeze of lemon or lime just before eating