01 -
Warm the milk until just lukewarm. Dissolve the sugar and yeast in the milk. Whisk in 1 egg, then add flour and salt; mix until a cohesive dough forms. Gradually incorporate the softened butter and knead until the dough is smooth and elastic, about 5–6 minutes. Transfer to a greased bowl, cover, and let rise in a warm area for 1–2 hours until doubled in volume.
02 -
In a saucepan, heat milk over low heat until simmering. In a bowl, whisk sugar, cornstarch, vanilla paste, 2 egg yolks, and 1 whole egg until well combined. Gradually stream the egg mixture into the hot milk, stirring constantly until thickened and smooth. Pour into a shallow tray, cover with plastic wrap touching the custard surface, and let cool completely.
03 -
Divide the proofed dough into balls weighing 2.5 to 2.8 ounces each. Place on a parchment-lined baking sheet, cover, and proof for 40 minutes until puffy.
04 -
Press a cavity into each dough ball. Spoon in cooled custard and a generous portion of raspberry jam. Brush edges with beaten egg wash.
05 -
Bake at 400°F (fan) for 15–18 minutes, or until buns are golden and fully cooked.
06 -
Once cooled slightly, drizzle buns with sugar glaze or dust with powdered sugar before serving.