Milk Oolong Tea

Step 1: Measure and Heat the Water

Measure 8g of roasted oolong leaves into a teapot or a heatproof bowl with a lid. This is roughly a one-to-forty ratio of tea to water - double the strength of a normal cup of tea - and getting this right is the single most important thing in the whole recipe. Bring 300ml of water to a boil, then let it sit for about 30 seconds so it drops to roughly 95C. Boiling water scorches the delicate aromatics in oolong and drives out bitterness, and water that is too cool will never extract the roasted notes properly.

Step 2: Brew the Tea Base

Pour the hot water over the leaves, cover the vessel with a lid so the heat and aroma are trapped, and let it steep for 3 to 4 minutes. Pour the tea through a fine mesh strainer into a pitcher the moment the timer goes off - do not let the leaves sit in the water, because every extra minute pulls out tannin and turns the tea harsh. You want a clear golden-amber liquid with a deep roasted aroma, not a dark brown brew. Aim for roughly 250ml of strong tea from your 300ml of water.

Step 3: Make the Simple Syrup

Combine 25g of white sugar and 25ml of water in a small saucepan and heat it over low heat, stirring only until the sugar has completely dissolved. As soon as it turns clear, take it off the heat - you are making a simple syrup, not caramel, and letting it boil or darken will make the drink taste burnt. Pour it into a jar and let it cool for a few minutes. A homemade syrup tastes cleaner than store-bought because it contains nothing but sugar and water, and it keeps in the fridge for about two weeks.

Step 4: Heat the Milk to 65C

Pour 200ml of whole milk and 30ml of heavy cream into a clean saucepan and warm it over medium-low heat until the surface is hot and tiny bubbles are just beginning to form around the edge of the pan, which is around 60 to 65C. Take it off the heat at that point. Boiling milk is the most common mistake in this recipe: boiling causes the proteins to coagulate into a grainy texture, and the milk skin that forms on top takes the delicate flavor of the tea with it. Whole milk is worth using because its fat carries the roasted aroma of the oolong far better than low-fat milk does.

Step 5: Combine and Shake

Add the simple syrup to the warm tea and stir until it dissolves completely - always add sugar to the hot tea first, because syrup poured straight into cold milk tends to clump and settle at the bottom. Now pour the heated milk into the tea, stir once to combine, and transfer everything into a shaker with 200g of ice. Shake vigorously for about 15 seconds, until the outside of the shaker frosts over and the drink turns noticeably colder. This is what gives the finished milk tea its smooth, blended body instead of the separated layers you get from simple stirring.

Step 6: Strain and Serve

Strain the shaken milk tea through a fine mesh strainer into a tall glass packed with fresh ice. The strainer removes the foam and any stray tea particles, leaving a silky, uniform drink. Drink it straight away while it is still cold and the aroma is at its peak. If you like toppings, add cooked brown sugar pearls or coconut jelly to the glass before pouring - but keep the topping light, because too much will blunt the roasted character of the oolong that makes this drink different from a standard black tea milk tea.

Tips

• The 8g to 300ml tea ratio is the whole game. If your milk tea tastes flat and mostly milky, brew more tea rather than adding more sugar.
• Never let the milk boil. If you have no thermometer, look for tiny bubbles forming at the edge of the pan rather than a rolling surface - that is your cue to pull it off the heat.
• Always dissolve the syrup in the hot tea before the milk goes in, otherwise it will not mix evenly.
• Roasted oolong is the classic choice for this drink, but Four Seasons Oolong (a floral Taiwanese variety) makes a lighter, more fragrant version. Do not use a delicate green tea, which will turn bitter when brewed this strong.
• For a Hong Kong cafe style version, use 12g of tea brewed for 5 minutes, swap in half evaporated milk for the cream, and increase the syrup to 30ml.
• Add your toppings at the end, not in the shaker. Pearls shaken hard with ice will turn to paste and cloud the drink.

FAQ

Can I use tea bags instead of loose leaf? Yes, use two good quality oolong tea bags and reduce the steep time to 3 minutes, since bags usually hold a weaker blend and can turn bitter faster.
Why is my milk tea bitter? Either the tea steeped too long or the milk boiled. Both are time and temperature problems: strain the tea at 4 minutes and keep the milk under 65C.
Can I use oat or soy milk? Yes. Oat milk is the closest match to dairy in both creaminess and how it carries the tea aroma. Soy milk works but is thinner, so add a little extra cream.
Can I make this ahead? Brew the tea and make the syrup up to a day ahead and keep them refrigerated. Heat the milk and assemble the drink fresh, adding the ice at the last moment so the drink does not dilute.
How much sugar should I use? The standard 25ml of syrup gives roughly 6 percent sweetness, which is the level most tea shops serve by default. Adjust from there - the roasted oolong is naturally less bitter than black tea, so it needs less sugar than you might expect.