Khanom Buang (Thai Crispy Pancakes)

What Is Khanom Buang?

Khanom Buang is a beloved Thai street food consisting of thin, crispy shells made from rice and mung bean flour, folded around a fluffy whipped egg topping and finished with either sweet shredded coconut or a savory sprinkle of dried shrimp. Often compared to a delicate taco or a Thai take on a French crêpe, it’s sold from street carts across Thailand, where vendors cook the shells to order on flat griddles right in front of customers.

The dish has roots stretching back to the royal Thai kitchens of the Ayutthaya period, where elaborate desserts were refined for court presentation before eventually making their way into everyday street food culture. What distinguishes Khanom Buang from other crispy shell desserts is its contrast of textures within a single bite: the shell shatters delicately, the whipped topping stays airy and slightly custardy, and the coconut adds a chewy sweetness that ties it together.

Vendors traditionally offer both a sweet version, topped with toasted coconut and sometimes a drizzle of syrup, and a savory version featuring dried shrimp, shallots, and fresh coriander. Many stalls sell both side by side, letting customers mix and match a small assortment. The shells are always made in small batches and served immediately, since their signature crispness fades quickly once they sit.

Making Khanom Buang at home takes some practice to get the shell thin and even, but the payoff is a genuinely nostalgic taste of Thai street food culture. The process rewards patience and a steady hand, and once mastered, it becomes an impressive, unusual dessert to share with guests who haven’t encountered it before.

Ingredient Notes

• Rice flour: Rice flour is the backbone of the crispy shell, giving it a light, delicate crunch. Use a fine-milled rice flour rather than a coarse one for the smoothest, most even batter.
• Mung bean flour: A small amount of mung bean flour adds structure and a subtle nuttiness to the shell. It’s typically sold in Asian grocery stores and shouldn’t be substituted with more rice flour alone.
• Egg yolks: The whipped egg yolks form the signature fluffy, custard-like topping. Use fresh, room-temperature yolks, since they whip up lighter and more evenly than cold ones straight from the fridge.
• Sweetened shredded coconut: Lightly toasting the coconut before using it deepens its flavor and adds a bit of textural crunch against the soft topping and crisp shell.

Ingredient Suggestions

1. Toasted sesame seeds: A sprinkle over the sweet version adds a subtle nutty crunch alongside the coconut.

2. Thin strips of fresh shallot: For the savory version, a few extra crisp shallot strips add sharpness that cuts through the richness.

3. Fresh Thai chili, minced: A small pinch added to the savory topping introduces a gentle heat that plays well against the dried shrimp.

4. Golden threads (foi thong): This traditional Thai egg-yolk garnish adds an elegant, delicate sweetness to the topping.

5. A drizzle of condensed milk: For an extra-indulgent sweet version, a light drizzle adds richness and glossy sheen.

Helpful Tips & Pro Tips

• Make sure your pan is fully preheated before spreading the batter. A pan that isn’t hot enough causes the shell to stick and tear instead of releasing cleanly once crisp.
• Spread the batter as thinly and evenly as possible in a swirling motion. A shell that’s too thick won’t crisp up properly and will taste doughy in the center.
• Whip the egg yolk topping just until it turns pale and slightly thickened; overwhipping can cause it to become too runny to hold its shape on the shell.
• If your shells are turning out soft rather than crisp, the pan likely isn’t hot enough, or the batter was spread too thickly; both issues trap moisture that prevents proper crisping.
• Cook and fill the shells in small batches, serving each one immediately. Khanom Buang loses its signature crunch quickly once topped and left to sit.

How to Serve and Store

Khanom Buang is best enjoyed fresh off the pan, ideally within minutes of folding, while the shell is still warm and audibly crisp. It doesn’t store or reheat particularly well as a finished dish, since the shell softens quickly once combined with the moist topping. If you need to prepare components ahead, store the unfilled shells in an airtight container at room temperature for up to a few hours, and keep the coconut and egg yolk toppings refrigerated separately, assembling only just before serving. This dish is not recommended for freezing or extended storage.

Substitutions

• Egg yolk topping → Coconut cream whipped with a touch of cornstarch — This eggless alternative mimics the light, spreadable texture of the traditional topping. (Vegan)
• Dried shrimp → Finely diced shiitake mushroom, sautéed — A savory, umami-rich substitute for those avoiding shellfish or seafood. (Vegan)
• Mung bean flour → Additional rice flour — In a pinch, using slightly more rice flour in its place still yields a workable, though marginally less structured, shell. (Budget-Friendly)
• Rice flour → A certified gluten-free all-purpose blend — This ensures the shell remains gluten-free if your rice flour brand processes other grains nearby. (Gluten-Free)
• Granulated sugar → Coconut sugar — Coconut sugar offers a similar sweetness with a slightly deeper, caramel-like undertone.

Suggested Recipes

1. Tub Tim Grob: Offer this warm, crispy street food dessert alongside the chilled, icy rubies for a contrast of temperatures.

2. Khao Niew Ma Muang: Both showcase the coconut flavors central to Thai desserts, making them a natural pairing for a dessert sampler.

3. Moo Ping: Round out a Thai street food spread by pairing these crispy pancakes with smoky grilled pork skewers.

4. Boat Noodles: For an authentic street food experience, follow a bowl of boat noodles with these classic crispy pancakes.