Go Back
Blueberry Custard Crumble Buns Recipe
Ash Tyrrell

Blueberry Custard Crumble Buns Recipe

I still remember the first time I pulled a tray of these out of my oven and just stood there staring at them like I'd won something. Soft, pillowy dough, a swirl of creamy vanilla custard, juicy blueberries bursting through a golden cinnamon crumble it genuinely looked like something from a fancy bakery case.
Print Recipe Pin Recipe
Prep Time 2 hours
Cook Time 25 minutes
Servings: 6
Ingredients Method Notes

Ingredients
  

  • Whole milk warmed to 100–110°F — wakes up the yeast and keeps the dough soft and rich
  • Active dry yeast — this is what gives the buns their fluffy pillowy lift
  • Granulated sugar — sweetens the dough and gives the yeast something to feed on
  • Large egg — enriches the dough and helps bind everything together
  • Bread flour or all-purpose flour — builds the structure so your buns hold their shape
  • Kosher salt — balances the sweetness and sharpens the overall flavor
  • Unsalted butter room temperature — adds tenderness and that soft, rich crumb
  • Cream cheese room temperature — the heart of the custard filling, so let it soften fully to avoid lumps
  • Heavy cream — loosens the custard into a smooth pipeable texture
  • Vanilla extract — don't skip this it rounds out the whole custard flavor
  • Powdered sugar — sweetens the custard while keeping it silky instead of grainy
  • Blueberry jam store-bought or homemade — gives that concentrated, jammy blueberry punch
  • Fresh blueberries — for juicy little bursts baked right into the top
  • Egg beaten, for egg wash — brushed on for that shiny, golden bakery finish
  • Unsalted butter melted, for the crumble — brings the topping together into buttery clusters
  • All-purpose flour for the crumble — thickens the topping so it clumps instead of melting away
  • Light brown sugar for the crumble — adds a deeper, almost caramel sweetness
  • Ground cinnamon — brings warmth and that cozy bakery aroma
  • Powdered sugar for dusting — the finishing touch before serving

Method
 

  1. Warm your milk gently until it feels just barely hot to the touch, somewhere around 100 to 110°F. Pour it into your mixing bowl and stir in the yeast. Let it sit undisturbed for 5 to 10 minutes until it turns foamy and bubbly on top, which tells you it's alive and ready to work.
  2. Whisk the sugar and egg into your yeasty milk until fully combined. Add the flour and salt, then start kneading by hand or with a dough hook. Work the butter in a tablespoon at a time, letting each piece disappear before adding the next, until the dough turns smooth and slightly tacky.
  3. Move your dough into a lightly greased bowl and cover it with a clean towel. Set it somewhere warm and draft-free for 1 to 2 hours. You're looking for it to roughly double in size, which is how you know the yeast has done its job properly.
  4. Once risen, punch the dough down gently to release the air and divide it into six even pieces. Roll each piece into a ball, then flatten it into a round disc about 6 inches wide. Arrange them on a parchment-lined baking sheet with a little breathing room between each one.
  5. Beat your softened cream cheese until it's completely smooth with no lumps. Mix in the vanilla and heavy cream, then gradually add the powdered sugar until the whole thing turns light and fluffy. Scoop it into a piping bag so it's ready to go.
  6. Brush each dough round with egg wash for that glossy finish. Press a shallow well into the center of each one, then pipe a generous swirl of custard right into it. Spoon a little blueberry jam over the custard and scatter fresh blueberries on top.
  7. Stir together melted butter, flour, brown sugar, and cinnamon until it forms buttery little clumps, then sprinkle it generously over each bun. Bake at 375°F for 20 to 25 minutes, until the tops are puffed and deeply golden and the custard looks just set.
  8. Let the buns rest on the pan for about 10 minutes so the custard has time to firm up before you move them. Finish with a light dusting of powdered sugar right before serving for that classic bakery look.

Notes

  • I always chill my custard for at least 30 minutes before filling the buns, otherwise it runs everywhere in the oven.
  • I press my finger or a spoon into the dough a couple of times to keep the well from bouncing back before filling it.
  • I turn my oven on for two minutes, then shut it off, and let my dough rise in there for a reliably warm spot.
  • I use room temperature cream cheese every time, since cold cream cheese always leaves lumps in my custard.
  • I taste my blueberries before baking, because bland berries make for a bland bun no matter what else you do right.