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1
Make the Tangzhong
10 Mins
Medium heat, about 65°C (150°F)
Whisk the 20 g flour and 100 g milk in a small pan until smooth, then cook over medium heat, stirring constantly, until the mixture thickens into a paste that leaves lines on the pan base. Scrape into a bowl, cover with cling film touching the surface, and cool to room temperature.
Cook it just until it thickens — overcooked roux turns rubbery and will not blend into the dough.
Done when: Thick paste that coats the whisk; a thermometer reads about 65°C (150°F).
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2
Mix and Knead the Dough
20 Mins
Room temperature, ~22°C (72°F)
Put the 380 g flour, sugar and yeast in a large bowl, add the cooled tangzhong, the remaining 100 g milk, the water and the beaten egg, and mix to a shaggy dough. Knead for 8 minutes, then work in the softened butter a little at a time and knead for 8–10 more minutes until the dough is smooth, elastic and passes the windowpane test.
If the dough sticks, knead on — do not add extra flour, or the loaf will be dry.
Done when: Smooth, satiny dough that stretches thin without tearing.
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3
First Rise
60 Mins
Warm spot, about 27°C (80°F)
Shape the dough into a ball, place it seam-down in a lightly oiled bowl, cover, and leave in a warm spot until doubled in size, about 1 hour.
A cool kitchen slows the rise — set the bowl in an oven with just the light on.
Done when: Dough doubled; a fingertip dent stays put instead of springing back.
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4
Shape the Loaf
10 Mins
Room temperature, ~22°C (72°F)
Turn the dough out, press out the air, and divide it into three equal pieces. Roll each into a tight log about the length of the tin, then place the three logs side by side in a greased 900 g (2 lb) loaf tin.
Roll the logs seam-down so the top of the loaf bakes smooth.
Done when: Three even logs filling the tin in a row, seams hidden underneath.
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5
Second Rise
50 Mins
Warm spot, about 27°C (80°F)
Cover the tin loosely and leave in a warm spot until the dough rises about 2 cm above the rim of the tin, about 50 minutes. Meanwhile heat the oven to 180°C (350°F).
Do not rush this rise — an under-risen loaf bakes dense and squat.
Done when: Dough crowned about 2 cm above the rim, soft and puffy.
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6
Bake the Loaf
35 Mins
180°C (350°F)
Brush the top lightly with milk, then bake for 30–35 minutes until deep golden and the inside reaches 93°C (200°F). If the top darkens too fast, tent it loosely with foil. Cool in the tin for 10 minutes, then turn out onto a rack.
Cool the loaf completely before slicing, or the soft crumb will squash under the knife.
Done when: Deep golden crust; a skewer comes out clean and the loaf sounds hollow when tapped.
auto_awesome Finishing Touches & Plating
Cool the loaf completely before slicing — the wait is the hardest part of this japanese milk bread recipe, and the crumb sets as it cools.