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What Is a Bubble Waffle? The Hong Kong Egg Waffle Explained
A bubble waffle is a Hong Kong street snack made by cooking an egg-rich batter in a special pan, so it comes out as a sheet of puffy, golden bubbles that are crisp outside and soft inside. It is also called an egg waffle or, in Cantonese, gai daan jai, and today it is often rolled into a cone and filled with ice cream.
Unlike a regular waffle with its square grid, a bubble waffle is all round pockets that you tear off one at a time. Here is where it comes from, how it is made and how to eat one without wearing half of it.
Where bubble waffles come from
Egg waffles have been sold from street stalls in Hong Kong for decades, and they are still one of the city's best-known street snacks. The Cantonese name, gai daan jai, roughly means "little eggs", a nod to the egg-shaped bubbles.
Traditionally, they were cooked in heavy cast-iron moulds over an open flame and handed over in a paper bag, to be eaten warm and plain while walking. The appeal was simple: cheap, quick and fun to pull apart.
Over the last decade or so, dessert shops around the world turned the egg waffle into something bigger. Rolled into a cone while still warm and filled with ice cream, fruit and sauces, the bubble waffle cone became a social media favourite and spread to cafes far beyond Hong Kong.
How a bubble waffle is made
The batter is simple and leans heavily on eggs, usually with flour, sugar, milk and a raising agent such as baking powder. Hong Kong recipes often use evaporated milk, and some add custard powder or tapioca starch for colour and a slightly chewy bite.
The pan is what makes it unique. It has two hinged plates, one with rows of half-sphere hollows and one that closes over them. The batter is poured in, the pan is closed and flipped so the batter fills the bubbles, and it cooks in a few minutes. Older pans were turned by hand over a flame, while electric bubble waffle makers are common now.
What you get is a thin sheet joining dozens of puffs. Each bubble has a crisp shell and a soft, almost custardy middle, which is the texture that sets it apart from Belgian or American waffles. (For that comparison, read our guide to Belgian vs American waffles.)
How bubble waffles are served
In Hong Kong, the classic way is plain, warm and straight from the pan. The modern cafe version usually goes like this:
- The waffle is cooked fresh and, while still warm and flexible, rolled or folded into a cone.
- It is left for a short while to firm up so it holds its shape.
- Scoops of ice cream go in, followed by sauces, crushed biscuits, chocolate, fruit or wafer sticks.
- It is served upright, usually in a holder or paper sleeve, so the toppings stay on top.
The contrast is the point: warm, crisp bubbles against cold ice cream and sauce. That is also why bubble waffles are best eaten soon after they are made.
How to eat a bubble waffle without a mess
A loaded bubble waffle is tall, drippy and fun, which also makes it easy to get wrong. These simple habits help:
- Start from the top. Eat some of the ice cream and toppings first with a spoon, so nothing slides over the edge.
- Tear, then dip. Pull off bubbles from the open edge of the cone and use them to scoop up ice cream and sauce.
- Hold the sleeve, not the cone. If it comes in a holder or paper sleeve, keep it on, so you are not squeezing the waffle.
- Tilt it slightly back. Melting ice cream then runs into the cone rather than down your wrist.
- Do not wait too long. Ice cream softens the waffle as it melts, so eat it while the bubbles are still crisp.
- Share by the bubble. Tear off a few bubbles for each person instead of passing the whole cone around.
- Grab napkins first, not halfway through.
One more tip. Ice cream does not travel well, so a bubble waffle is one dessert that is worth eating at the cafe rather than ordering in.
Bubble waffles at Waffee House
Bubble waffles are among the things Google reviewers mention most at Waffee House in Kankanady. They are Hong Kong-style egg-puff waffles, folded into a cone and filled with ice cream, sauces and toppings. There are six on the menu:
- Banoffee Bubble Waffle, for banana and toffee fans
- Chocolate Overload Bubble Waffle
- Cookies & Cream Bubble Waffle
- Kit Kat Bubble Waffle
- Strawberry Tella Bubble Waffle
- Waffee Royale Bubble Waffle
Prices start from around ₹390. See all six on our bubble waffles in Mangalore page, then find us at City Arcade, near Bendoorwell Circle. A mojito is a good match, since it cuts through the sweetness, and mojitos are another thing reviewers bring up often.