Love bubble tea AND cake? Try these soft, chewy, creamy Milk Tea Cake Cups! Made with milk tea sponge, silky cream cheese filling, and brown sugar pearls. Perfect for birthdays, parties, and boba lovers. 
My older daughter came home last week and told me her friends were having a little party. Before I could even ask what the occasion was, she put her hands together and gave me that look — the mom-please-save-the-day look.
“Can you make something to bring?”
Immediately, my brain jumped to desserts. Kids love sweet treats, and my own love language is baking, so of course I said yes.
At first, I thought of bubble milk tea… then cake. But both felt a little too predictable on their own.
I kept thinking, they love boba… they love cake… so why not put them together?
That’s when it hit me: Bubble Milk Tea Cake Cups.
When we arrived at the party and opened the box, the reaction was priceless.
Eyes got big, mouths dropped open, and before anyone even tasted one, you could hear the chorus of “Wow!” “Is that milk tea?” “Wait — with boba?!”
Inside each cup was everything I personally love about milk tea:
- Fluffy milk tea sponge cake soaked with real tea fragrance
- Silky cream cheese milk tea filling that feels like a thick, luxurious sip
- Chewy brown sugar pearls that add sweetness, bounce, and fun
I won’t lie — it does take some effort. You’re basically baking a cake while brewing milk tea at the same time.
But it’s not as intimidating as it sounds, and once I saw how quickly those cups disappeared (and how many kids asked for seconds!), every minute was worth it.
And now everyone keeps asking how to make them… so of course, I have to share.
Ingredients and Substitutions
- Corn oil – A flavorless oil that keeps the sponge cake fine and delicate. Avoid butter, which will change the taste and make the cake heavier.
- Milk tea – Use unsweetened milk tea. It enhances the tea aroma without overpowering the cream and sponge. You can brew your own or use sugar-free store-bought milk tea.
- Cake flour – Its low gluten level is essential for a soft, cloud-like sponge. It should not be replaced with all-purpose flour, which makes the cake tough.
- Eggs – Use room-temperature eggs for better whipping and blending. The cake depends on properly whipped egg whites for volume and softness.
- Granulated sugar – Only used for whipping egg whites and a little for the cream. It controls sweetness, keeping the cake balanced and not overly sugary.
- Cream cheese – Softened cream cheese gives the cream filling its thick, smooth texture. Mascarpone works as a substitute but is milder and less tangy.
- Heavy cream – When whipped together with cream cheese and milk tea, it becomes silky and thick without being greasy.
- Brown sugar boba – You can use store-bought or homemade. It should be cooked beforehand and used fresh for the best chew. Taro balls or barley pearls also work.
- Chocolate sticks – Optional but fun for presentation. Choose thin biscuit-style sticks or chocolate decorations.
How to Make Bubble Milk Tea Cake Cups
1. Prep the Oven and Ingredients
Preheat the oven to 150°C (300°F) with top and bottom heat for 10 minutes.
Line a baking tray with parchment paper.
Separate egg whites and yolks into clean, dry bowls.
Cook brown sugar boba beforehand, drain, and set aside.
2. Make the Milk Tea Sponge Batter
In a mixing bowl, add 50g corn oil and 50g milk tea.
Whisk until the mixture becomes smooth and fully emulsified (no oily streaks on top).
Sift in the cake flour, then whisk using a “Z” motion until the batter is silky and no dry spots remain.
- Tips: Avoid stirring in circles — it can develop gluten and make the cake less soft.
Add 5 egg yolks and whisk again until everything is smooth and well mixed.
Add sugar to the egg whites and whip until soft peaks form (soft curved tip, not stiff).
Add 1/3 of the whipped egg whites to the yolk batter and fold gently. Pour the mixture back into the remaining egg whites and fold until fully blended with no visible streaks.
3. Bake the Sponge
Pour the batter into the lined tray and smooth the surface. Tap lightly to remove air bubbles.
Bake at 150°C (300°F) for 30 minutes until springy and set.
Cool fully on a rack for about 30 minutes, then unmold.
4. Make the Cream Cheese Milk Tea Filling
Beat softened cream cheese, sugar, and milk tea together until smooth.
Add whipping cream and whip until thick and creamy.
Transfer to a piping bag.
5. Assemble the Cake Cups
Use a large round cutter to cut 4–6 cake circles. Use a smaller cutter to remove the centers and create sponge rings.
Add a layer of brown sugar boba to each dessert cup.
Pipe in a layer of cream. Place one sponge ring over the cream and pipe another layer of cream.
Finish with more boba on top. Add chocolate sticks if using.
Tips & Tricks
- Whip Egg Whites to the Right Stage: For a cake that is tall and fluffy yet moist, achieving soft peaks is crucial. Over-whipped meringue can make the cake dry and crumbly, while under-whipped meringue won’t provide enough structure, leading to a dense cake.
- Fold Gently to Keep it Airy: When combining the meringue with the yolk batter, always use a folding motion with a spatula, scooping from the bottom of the bowl. This preserves the air bubbles you worked hard to create, which is the key to a soft and springy sponge.
- Customize Your Flavors: Feel free to stir a teaspoon of finely crushed black tea leaves into the cake batter for an extra tea kick, or add a tablespoon of black sugar syrup to the cheese cream for a deeper, caramel-like flavor.
- Get Creative with Textures: While boba pearls are classic, you can easily swap them for other toppings like taro balls, cooked tapioca, or even a sprinkle of crushed tea biscuits for a different crunch.
Frequently Asked Questions
How long can these cake cups be stored?
They keep well covered in the refrigerator for 2–3 days, but are best within the first day for ideal boba texture.
Can I swap the boba for something else?
Absolutely. Try taro balls, grass jelly, barley pearls, or mini mochi for different textures.
Bubble Milk Tea Cake Cups (with Brown Sugar Boba!)
Ingredients
Milk Tea Cake Sponge
- 50 g corn oil
- 50 g unsweetened milk tea
- 65 g low-gluten flour
- 5 medium eggs separated
- 50 g fine granulated sugar
Cheese Cream
- 150 g cream cheese room temperature
- 15 g fine granulated sugar
- 60 g unsweetened milk tea
- 200 g whipping cream
Assembly & Toppings
- 100 g brown sugar boba pearls cooked
- 200 ml unsweetened milk tea for drinkable version
- Chocolate sticks for garnish (optional)
Instructions
Prep the Oven and Ingredients
- Preheat the oven to 150°C (300°F) with top and bottom heat for 10 minutes.
- Line a baking tray with parchment paper.
- Separate egg whites and yolks into clean, dry bowls.
- Cook brown sugar boba beforehand, drain, and set aside.
Make the Milk Tea Sponge Batter
- In a mixing bowl, add 50g corn oil and 50g milk tea.
- Whisk until the mixture becomes smooth and fully emulsified (no oily streaks on top).
- Sift in the cake flour, then whisk using a “Z” motion until the batter is silky and no dry spots remain.
- Tips: Avoid stirring in circles — it can develop gluten and make the cake less soft.
- Add 5 egg yolks and whisk again until everything is smooth and well mixed.
- Add sugar to the egg whites and whip until soft peaks form (soft curved tip, not stiff).
- Add 1/3 of the whipped egg whites to the yolk batter and fold gently. Pour the mixture back into the remaining egg whites and fold until fully blended with no visible streaks.
Bake the Sponge
- Pour the batter into the lined tray and smooth the surface. Tap lightly to remove air bubbles.
- Bake at 150°C (300°F) for 30 minutes until springy and set.
- Cool fully on a rack for about 30 minutes, then unmold.
Make the Cream Cheese Milk Tea Filling
- Beat softened cream cheese, sugar, and milk tea together until smooth.
- Add whipping cream and whip until thick and creamy.
- Transfer to a piping bag.
Assemble the Cake Cups
- Use a large round cutter to cut 4–6 cake circles. Use a smaller cutter to remove the centers and create sponge rings.
- Add a layer of brown sugar boba to each dessert cup.
- Pipe in a layer of cream. Place one sponge ring over the cream and pipe another layer of cream.
- Finish with more boba on top. Add chocolate sticks if using.
Leave a Reply