Coffee Lava Bun with Better Boba
These fluffy milk buns are filled with a silky coffee custard that oozes like lava when warm. Each bite combines buttery bread, rich espresso flavor, and the chewy surprise of Better Boba’s Classic Brown Sugar pearls for a café dessert that feels both cozy and luxurious.
🧈 Ingredients
For the Dough:
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2 ½ cups all-purpose flour
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2 tbsp sugar
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1 tsp instant yeast
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½ tsp salt
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½ cup warm milk
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2 tbsp unsalted butter (softened)
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1 large egg
For the Coffee Lava Filling:
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1 cup whole milk
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2 tbsp instant coffee or 1 shot of espresso
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3 tbsp sugar
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1 tbsp cornstarch
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2 egg yolks
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1 tbsp unsalted butter
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Pinch of salt
For the Better Boba:
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2 cups water
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2 tbsp brown sugar or honey (for soaking)
☕ Instructions
1. Make the Coffee Lava Custard
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In a saucepan, whisk together milk, sugar, coffee, cornstarch, and egg yolks.
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Cook over medium heat, stirring constantly, until the mixture thickens.
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Remove from heat, stir in butter and a pinch of salt.
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Chill in the refrigerator for 30–45 minutes until thickened but spreadable.
2. Prepare the Dough
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In a large bowl, combine flour, sugar, salt, and yeast.
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Add warm milk and egg, mixing until a rough dough forms.
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Knead for 8–10 minutes until smooth, then knead in butter until fully absorbed.
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Cover and let rise for 1 hour or until doubled in size.
3. Cook the Better Boba
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Boil water and cook Better Boba according to package directions.
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Drain and soak in brown sugar syrup for added sweetness.
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Let cool completely.
4. Assemble the Buns
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Divide dough into 8 pieces. Flatten each into a small disk.
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Spoon 1 tbsp of coffee custard and a few Better Boba pearls into the center.
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Pinch to seal and roll gently into a smooth ball.
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Place on parchment-lined tray, seam side down. Cover and let rest for 30 minutes.
5. Bake
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Preheat oven to 350°F (175°C).
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Brush buns with a bit of milk or egg wash.
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Bake for 15–18 minutes, or until golden brown.
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Let cool slightly — the filling should still be molten inside.
🍯 Optional Toppings
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Dust with espresso powder or cocoa.
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Drizzle with condensed milk or coffee glaze.
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Serve warm with a scoop of vanilla ice cream.
🌟 Tip
For café-style presentation, slice the bun open just slightly so the coffee lava and golden brown Better Boba pearlsooze out — it’s irresistible for photos!