Fourteen items and three hours, with two long waits that overlap rather than queue.
The pastry cream is cooked while the dough is rising. Both need time, and the custard needs it cold, so the two run alongside each other.
Why This Recipe Works
- Softened butter worked into the dough gives brioche its rich, tender crumb.
- A full hour's rise develops the flavour a quick dough never gets.
- Cornstarch and yolks together set the custard thick enough to pipe.
- Covering the custard directly stops a skin forming as it chills.
- Filling after baking keeps the custard smooth rather than baking it into the crumb.
Ingredient Notes
- Eggs, divided
- Three in total. Two go into the dough and the third is beaten for the egg wash that makes the tops glossy.
- Egg yolks, milk, sugar and cornstarch
- Three yolks, a cup and a half of milk, a third of a cup and two tablespoons. Cooked together they make the pastry cream.
- Pearl sugar
- Two tablespoons. This is the white sprinkle on the tops — not icing sugar and not coconut.
- Semisweet chocolate chips
- Three quarters of a cup, folded into the chilled custard with a few more pressed into the filling afterwards.
How to Make It
Brioche dough mixed, kneaded elastic and risen about an hour
Mix flour, yeast, sugar, salt, 2 eggs, warm milk, and butter into a soft brioche dough; knead until elastic and let rise about 1 hour.
Custard cooked thick and bubbling, covered directly and chilled
For custard, whisk milk, yolks, sugar, and cornstarch over medium heat until thick and bubbling; cook 1 minute more, stir in vanilla, cover directly, and chill.
Shaped into eight buns, proofed, egg-washed and pearl sugar on
Shape dough into 8 buns, proof 45 minutes, brush with the remaining beaten egg, and sprinkle with pearl sugar.
Baked at 375°F for eighteen to twenty-two minutes, then cooled
Bake at 375°F for 18 to 22 minutes until glossy and golden; cool.
Split lengthwise and piped with custard and chocolate chips
Split buns lengthwise and pipe in chilled vanilla custard studded with chocolate chips; press a few extra chips into the filling.
Two Slow Things, Running at the Same Time
Three hours sounds long for eight buns, and it would be if these two jobs happened one after the other. They do not. The dough needs an hour of rising and the custard needs the same hour to chill hard enough to pipe - so the recipe runs them side by side and they meet only at the very end, after the baking is already done.
The dough
- Step 1
3 1/4 cups FLOUR, 2 1/4 tsp INSTANT YEAST, 1/4 cup sugar, 1/2 tsp salt, 2 of the 3 EGGS, 1/2 cup WARM MILK and 6 tbsp SOFTENED BUTTER, kneaded UNTIL ELASTIC and risen ABOUT 1 HOUR. Brioche is a heavily enriched dough and it behaves differently from a lean one: the fat coats the flour and slows gluten forming, so it takes noticeably longer to become elastic and longer again to rise. Elastic is the cue to work to, not a set time at the kneading stage.
- Step 3
Shaped into 8 BUNS and PROOFED 45 MINUTES, then brushed with THE REMAINING BEATEN EGG and sprinkled with 2 tbsp of PEARL SUGAR. That third egg is why the ingredient list says DIVIDED - it was held back from the dough for exactly this. The wash is what produces the GLOSSY GOLDEN tops, and pearl sugar survives the oven as distinct white grains where icing sugar would dissolve into the crust.
- Step 4
BAKED AT 375°F FOR 18 TO 22 MINUTES UNTIL GLOSSY AND GOLDEN, then COOLED. The buns bake completely plain and completely empty. Cooling matters before the next stage: chilled custard piped into a warm bun melts and runs straight back out.
The pastry cream, alongside
- Step 2, while the dough rises
1 1/2 cups WHOLE MILK, 3 EGG YOLKS, 1/3 cup sugar and 2 tbsp CORNSTARCH whisked OVER MEDIUM HEAT UNTIL THICK AND BUBBLING, then COOKED 1 MINUTE MORE, with 1 tsp VANILLA stirred in. That extra minute past bubbling is not padding - cornstarch needs to reach and hold a boil to thicken fully, and a custard pulled at first bubble loosens again as it cools. Thick and bubbling is also the safety standard for a cooked egg custard.
- Immediately after
COVERED DIRECTLY and CHILLED. Directly means film pressed onto the custard's own surface rather than stretched over the bowl: any air gap and the surface dries into a skin that will pipe as lumps through the filling. Chill promptly for safety as well, and the custard must be genuinely cold before it will hold a pipe.
They meet after the oven, not before
The cooled buns are SPLIT LENGTHWISE and the chilled custard - now studded with the 3/4 cup of CHOCOLATE CHIPS - is PIPED IN, with A FEW EXTRA CHIPS PRESSED INTO THE FILLING. Split and filled AFTER baking, for a simple reason: pastry cream baked inside a bun splits into curds and water and soaks into the crumb. From this moment the buns are a cold item and belong at 40°F OR BELOW.
Success Tips
- Knead the brioche until genuinely elastic; enriched dough takes longer than lean.
- Cover the custard against its surface, not across the bowl, or it forms a skin.
- Chill the custard fully before it goes near the buns — warm custard will not pipe.
Serving Ideas
Eight golden glossy brioche buns split lengthways and filled with thick pale vanilla custard studded with chocolate chips, more chips and pearl sugar on the glazed tops.
Frequently Asked Questions
What is the white sprinkle on top?
Pearl sugar. It holds its shape in the oven, which is why it is still visible as distinct white grains on the baked tops rather than dissolving away.
Can the custard be baked inside the buns?
No. The buns are baked plain, cooled and then split and piped — custard baked inside would split and soak into the crumb.
How should the filled buns be kept?
Cold, at 40 degrees Fahrenheit or below. Once the pastry cream is in them they are a chilled item rather than something to leave out.
