Egg waffles (鸡蛋仔, gai daan jai) are Hong Kong’s most iconic street snack — a sheet of golden, honeycomb-like bubbles that shatter crisp on the outside and stay soft and custardy within. Fold one in half like a book, and you get the portable dessert that has conquered streets from Mong Kok to Melbourne, where it is better known as the “bubble waffle.”
The egg waffle was born in the 1950s, when resourceful Hong Kong bakers repurposed broken eggs into a batter and cooked it in a special cast-iron mold with dozens of half-sphere wells. The name 鸡蛋仔 literally means “little eggs,” a nod to the round bubbles. Today you can find classic plain, chocolate, and matcha versions — but the original custard-egg flavor, eaten hot off the iron, is still the one worth crossing town for.
Born From Broken Eggs
The origin story is a small piece of Hong Kong commercial history. In the 1950s, grocery shops selling eggs would end up with cracked or broken ones they could not sell whole. Rather than waste them, shopkeepers mixed them into a sweet batter with flour, sugar, and evaporated milk, and cooked it in a hinged cast-iron mold — the same kind of mould used for 格仔饼 (grid cakes). The batter filled dozens of hemispherical wells, and when the mold was opened, out came a sheet of joined bubbles, crisp at the edges and soft in the middle. It was cheap, portable, and delicious, and it became a fixture of the city’s street stalls. The mold itself gave the snack its name and its shape, and the same mold is still used today — a hinged iron that clamps over a flame.
Why the Bubbles Stay Crisp and Soft
- Custard powder is the classic flavor — it gives that faint vanilla-yellow tint and the nostalgic taste
- Evaporated milk, not fresh — it adds richness and a subtle caramel note without watering down the batter
- A little cornstarch — it crispens the shell while the interior stays tender
- Rest the batter 30 minutes — the flour hydrates and the bubbles rise more evenly
- Fill the mold only two-thirds — overfilling makes the bubbles merge and lose their definition
- The two-stage cook — cook one side, flip, then cook again; the shells crisp while the centers stay custardy
- Eat within 10 minutes — the contrast between crisp and soft is the whole point, and it fades as they cool
From Mong Kok to the World
For decades the egg waffle was a purely local pleasure — a snack bought from a street stall, eaten standing up, folded in its paper bag. What changed was emigration and, later, social media. As Hong Kong communities settled in Toronto, London, Sydney, and New York, they took the cast-iron molds with them, and the snack appeared in Chinatown bakeries and Asian dessert shops abroad. Then, in the 2010s, the “bubble waffle” became a global dessert trend in its own right: served flat with ice cream, drizzled with chocolate, or wrapped around fruit and whipped cream. The versions sold in Western dessert shops are often sweeter and heavier than the Hong Kong original, and purists will tell you they miss the point. The original is not a dessert to be loaded with toppings; it is a hot, crisp, faintly custardy snack that is best eaten plain, within a minute or two of leaving the iron.
Ingredients and Where to Find Them
- Custard powder — custard powder, essential for the classic flavor
- Evaporated milk — evaporated milk
- Egg waffle pan — an egg waffle iron; a stovetop cast-iron one is traditional and inexpensive
Also needed: all-purpose flour, cornstarch, baking powder, eggs, sugar, and a little oil or butter. Optional add-ins: cocoa powder, matcha, taro powder, or chocolate chips.
How to Make Them
- Whisk 150g (1.25 cups) flour, 20g custard powder, 20g cornstarch, and 1 teaspoon baking powder together
- Beat 2 eggs with 80g (1/3 cup) sugar, then add 100ml evaporated milk, 100ml water, and 2 tablespoons melted butter
- Fold the dry ingredients into the wet and whisk until smooth; rest 30 minutes
- Heat the egg waffle pan over medium heat and brush both sides with oil
- Pour in batter to fill each well about two-thirds, close the pan, and immediately flip it
- Cook 2 minutes, flip, and cook another 2–3 minutes, opening occasionally to check the color
- Lift the waffle out with a fork, roll or fold it while hot, and eat immediately
Variations
- With chocolate — 2 tablespoons cocoa powder in the batter, or chocolate chips pressed into the wells
- With matcha — 1 tablespoon matcha powder for a green, slightly bitter version
- With taro — taro powder gives a purple, nutty waffle; a modern Hong Kong favorite
- With salted egg yolk — a recent street-food trend, with salted egg custard drizzled over the finished waffle
Frequently Asked Questions
Why did my egg waffles turn out soft instead of crispy?
The pan was not hot enough, or the batter was too wet. Preheat the pan properly over medium heat before pouring, and measure the liquids carefully — too much milk makes a batter that steams rather than crisps.
Can I make egg waffles without a special pan?
You can use a pizzelle maker or a deep-pocketed waffle iron, but the bubbles will be shallower and the texture different. A stovetop cast-iron egg waffle pan is inexpensive and gives the authentic result.
Why are my bubbles not forming properly?
Overfilling is the most common cause — the batter rises and merges, losing the individual bubbles. Fill each well about two-thirds full and close the pan immediately, then flip it right away so the batter distributes evenly.
How do I store leftovers?
Egg waffles are best eaten within 10 minutes of cooking. To store, cool completely, seal in a bag, and reheat in an air fryer or a dry pan at medium heat for 2–3 minutes until crisp again.
More Hong Kong & Street Snacks
Love street-food sweets? Try my Hong Kong Egg Tart 蛋挞, the silky Double Skin Milk 双皮奶, or the savory Jianbing 煎饼果子.
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