To make bubble tea at home, boil dried tapioca pearls until chewy all the way through, soak them in a warm brown sugar syrup, then spoon them into a glass with ice, strong black tea and cold milk. A batch for two takes about 45 minutes with traditional pearls, or 15 minutes with quick-cook pearls, and you need a wide straw to drink it.
Bubble tea, also called boba or pearl milk tea, comes from Taiwan, and the brown sugar version with streaks of dark syrup down the glass is one of the most popular orders in UK bubble tea shops. It is easy to make at home once you know how to cook the pearls, which is where most first attempts go wrong. This guide covers which pearls to buy, how to cook them, how to make the syrup, which tea to use, and how to rescue pearls that come out hard or mushy.
What you need to make bubble tea
- Dried tapioca pearls. The large black pearls (around 8–10 mm) are the classic choice. They are made from tapioca starch, coloured dark with brown sugar or caramel.
- Dark sugar. Dark muscovado or dark brown soft sugar works well. Taiwanese or Okinawan black sugar, sold in blocks or powder, gives a deeper, slightly smoky flavour.
- Strong black tea. Assam, Ceylon or English breakfast tea bags are fine; see the tea section below for other options.
- Milk. Cold whole milk gives the creamiest result. Oat milk is the best dairy-free swap. Many shops use non-dairy creamer powder, which you can buy too.
- Wide straws. Pearls need a straw about 12 mm across. Reusable metal or glass boba straws are sold alongside the pearls.
Quick-cook vs traditional tapioca pearls
Most Asian supermarkets sell two kinds of dried pearl, and the packets look similar, so read the cooking instructions before you buy.
| Quick-cook (5-minute) pearls | Traditional pearls | |
|---|---|---|
| Cooking time | About 5 minutes, plus a few minutes resting | About 20–30 minutes, plus 20–30 minutes resting |
| Texture | Soft and gently chewy | Firmer, bouncier, more chew (often called QQ in Taiwan) |
| Forgiveness | Easy to overcook; they go soft quickly | Easier to get right, but undercooked centres are common |
| Best for | A quick drink on a weeknight | The closest result to a bubble tea shop |
Cooking times vary a lot between brands and pearl sizes, so treat the packet as your starting point and check by biting a pearl. Frozen and vacuum-packed ready-to-use pearls also exist; they only need a short boil or a minute in the microwave, and are worth trying if you want bubble tea in a hurry.
How to cook tapioca pearls
- Use plenty of water. Allow at least 10 times the water to pearls: about 1 litre for 100 g. Too little water turns starchy and the pearls stick together.
- Wait for a rolling boil. Add the pearls only when the water is boiling hard. If they go into warm water, the outsides dissolve before the centres cook.
- Stir gently until they float. Stir for the first minute so nothing sticks to the pan. When the pearls rise to the surface, turn the heat down to a steady simmer.
- Simmer, then rest. Cook for the time on the packet, partly covered, stirring now and then. Then turn off the heat, cover the pan and leave the pearls in the hot water to finish softening in the middle.
- Rinse and sweeten. Drain, rinse briefly in cold water to wash off the surface starch and stop the cooking, then put them straight into warm syrup.
Why are my tapioca pearls hard or mushy?
Hard or chalky pearls
- Undercooked centres. The most common cause. Simmer for longer and do not skip the covered rest.
- They went into the fridge. Cooked pearls turn firm and hard when chilled, as the starch sets. Keep them at room temperature in syrup.
- They sat around too long. Even at room temperature, pearls firm up after a few hours. Cook them close to when you want to drink.
- Old stock. Dried pearls that are well past their date can stay hard however long you cook them.
Mushy, sticky or broken pearls
- Overcooked. Especially with quick-cook pearls. Start testing a couple of minutes early.
- Not enough water, or a pan crowded with pearls, which makes the water thick and gluey.
- Started in cold water. The outsides soften and dissolve while the water heats up.
- Stirred too hard once they have softened. Stir gently and only when needed.
How to make brown sugar syrup for bubble tea
Put 80 g dark muscovado or black sugar and 60 ml water in a small pan over a medium heat. Stir until the sugar dissolves, then let it bubble for 3–5 minutes until it thickens slightly and coats the back of a spoon; it will thicken more as it cools. Add the drained pearls and simmer them in the syrup for 1–2 minutes so they absorb the flavour. For the tiger-stripe look, tilt the glass and drizzle thick syrup and a few pearls around the inside before adding the ice, so the syrup clings to the sides.
Which tea is best for bubble tea?
Whatever you choose, brew it about twice as strong as you would drink it, because the milk, syrup and ice all dilute it. Steep, then cool the tea completely before you assemble the drink.
| Tea | Flavour | Use it for |
|---|---|---|
| Assam or English breakfast | Malty, robust | Classic and brown sugar milk tea; the easiest place to start |
| Ceylon | Bright, brisk | Milk tea, iced lemon tea |
| Taiwanese black tea | Smooth, slightly sweet | Taiwanese-style milk tea |
| Oolong | Roasted or floral, depending on style | Oolong milk tea, plain iced tea |
| Jasmine green tea | Light, floral | Fruit teas with mango, passion fruit or lychee |
| Thai tea mix | Spiced, sweet, orange in colour | Thai milk tea |
| Matcha | Grassy, savoury, slightly bitter | Matcha milk tea, often with brown sugar pearls |
Taro milk tea is usually made with a taro powder rather than a brewed tea. For matcha drinks, see our matcha guide for how to whisk it without lumps.
Recipe: brown sugar milk tea with tapioca pearls
This makes two large glasses with traditional pearls. With quick-cook pearls, follow the packet in step 2 and cut the cooking time to about 15 minutes in total. Make the tea first so it has time to cool while the pearls cook.
Recipe
Brown sugar milk tea with tapioca pearls
Chewy tapioca pearls simmered in dark sugar syrup, served with strong black tea, cold milk and ice. A Taiwanese bubble tea shop favourite made at home.
- Serves
- 2 large glasses
- Prep
- 10 min
- Cook
- 50 min
- Total
- 60 min
Ingredients
- 100 g dried black tapioca pearls (traditional or quick-cook)
- 80 g dark muscovado sugar or Taiwanese black sugar
- 60 ml water, for the syrup
- 3 black tea bags, such as Assam (or 3 tsp loose-leaf tea)
- 250 ml boiling water, for the tea
- 400 ml cold whole milk or oat milk
- 2 large handfuls of ice cubes
Method
- 1Steep the tea bags in the 250 ml boiling water for 5 minutes, then remove them, squeezing gently. Leave the tea to cool, then chill it.
- 2Bring about 1 litre of water to a rolling boil in a large pan. Add the pearls and stir gently until they float, then simmer, partly covered, for 20–30 minutes (or as the packet says), stirring now and then.
- 3Turn off the heat, cover and leave the pearls in the hot water for 20–30 minutes. Test one: it should be translucent all the way through with no white centre.
- 4Meanwhile, put the sugar and 60 ml water in a small pan over a medium heat. Stir until dissolved, then bubble for 3–5 minutes until slightly thickened and glossy.
- 5Drain the pearls, rinse them briefly in cold water and add them to the syrup. Simmer for 1–2 minutes, stirring, until coated and shiny. Leave to cool for 5 minutes so they are warm, not hot.
- 6Tilt each glass and spoon in half the pearls and syrup, turning the glass so the syrup streaks down the sides. Add the ice.
- 7Pour in 200 ml milk and about 120 ml of the cold tea per glass. Stir with a wide straw and drink within an hour or two, while the pearls are soft.
How long do cooked tapioca pearls last?
Cooked pearls are best eaten on the day they are made, ideally within about 4 hours, kept covered in their syrup at room temperature. After that they start to firm up and lose their chew. Do not refrigerate them to keep them for later: the cold makes them hard, and re-boiling them for a minute only partly brings them back. Cook just as many as you need; 50 g dried pearls is about right for one large drink.
Unopened dried pearls keep for months in a cool, dry cupboard; follow the best-before date. Once opened, seal the bag tightly, as damp pearls can crack or cook unevenly. The cold tea keeps in the fridge for a day or two, and the syrup in a clean jar in the fridge for about a week.
Can you make tapioca pearls from scratch?
Yes, with tapioca starch (sometimes labelled tapioca flour), dark sugar and boiling water. Dissolve the sugar in the water, bring it back to the boil, stir it into part of the starch to make a sticky paste, then knead in the rest until the dough is smooth and pliable. Roll it into thin ropes, cut them into small pieces and roll each into a ball, dusting with more starch so they don't stick. The water must be boiling or the dough will not hold together. Homemade pearls cook in about 15–20 minutes and can be frozen raw, spread out on a tray, for another day.
Common bubble tea mistakes
- Weak tea. The drink tastes of sweet milk and little else. Brew it double strength.
- Hot pearls in a cold drink. Very hot pearls melt the ice and water the drink down. Let them cool until just warm.
- Cooking pearls hours ahead. They harden. Time them to finish shortly before you serve.
- Too much syrup. Start with less and taste; you can stir more in, but not take it out.
- Mixing up popping boba and tapioca pearls. Popping boba are juice-filled spheres sold ready to eat in jars. They need no cooking and burst rather than chew.
What you'll need
Two small things make home bubble tea feel like the real thing.
- Wide reusable boba strawsWide enough for tapioca pearls; reusable steel or glass straws come with a cleaning brush.See options on Amazon (affiliate link, opens in a new tab)
- Cocktail shakerChills and froths the milk tea in seconds.See options on Amazon (affiliate link, opens in a new tab)
- Tall glassesShow off the brown sugar streaks; 500 ml holds tea, ice and pearls.See options on Amazon (affiliate link, opens in a new tab)
- Tapioca pearlsQuick-cook pearls are ready in minutes; traditional ones are chewier. Check the pack says tapioca pearls, not popping boba.See options on Amazon (affiliate link, opens in a new tab)
- Assam black teaStrong enough to stand up to milk and sugar.See options on Amazon (affiliate link, opens in a new tab)
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Where to buy tapioca pearls in the UK
Chinese and Taiwanese brands of dried pearls, black sugar, Taiwanese teas, wide straws and Thai tea mix are sold in most Chinese supermarkets, often near the desserts and drinks powders. Our directory lists 259 stores stocking Chinese groceries, and the cities with the most choice are London, Edinburgh, Birmingham and Manchester. 34 listings in our directory mention bubble tea or boba, usually a drinks counter inside the shop, which is a handy way to taste a good brown sugar milk tea before you make your own. For the rest of a shopping trip, our Asian supermarket shopping tips cover how to find your way around.
Stores whose listings mention bubble tea or boba
- Ninnsi Oriental SupermarketKingston upon Hull · EnglandChineseKoreanJapanese
- MEIZ Oriental SupermarketPreston · EnglandChineseJapanese
- The Secret Grocery and Bubble Tea CafeAylesbury · EnglandJapanese
- Fusion O Oriental Supermarket & Bubble TeaBedford · EnglandChinese
- Village Super LimitedBicester · EnglandChinese
- 168 OrientalBristol · England
- 168 Oriental Park StreetBristol · England
- Ding Sing Oriental SupermarketBristol · England
Chinese supermarkets by city
Pair your bubble tea with something from our guide to Asian snacks to try, or make a batch of homemade mochi to go with it.