Chocolate Marble Bread

Yield
One 8” x 5” loaf.
Notes
Prepare the chocolate paste before the dough is mixed, as it needs time to cool.
Ingredients
- 120 g semisweet chocolate (~60%)
- 120 g milk
- 12 g cornstarch
- 12 g cake flour
- 8 g cocoa powder
- 600 g kashipan
Steps
- Warm the milk in a pot until it comes up to room temperature.
- In the meantime, sift the cornstarch, flour and cocoa powder together.
- Once the milk is warmed, whisk in the sifted dry ingredients.
- Cook the mixture as constantly stirring over low heat until it thickens. Add the chocolate and continue mixing until the texture is firm.
- While warm, form paste into a 10” x 5” rectangle. Cool until dough is ready.
- Flatten the kashipan, cover, and freeze for 20-30 minutes.
- When the dough is firm yet pliable, roll into a 10” square, and laminate the dough with the sheet of chocolate paste.
- Roll dough to an 8” x 24” rectangle then fold in thirds (forming an 8” square). Rotate 90º and repeat. Rotate again.
- Roll dough out to 8” x 12”, then roll into an 8”-long log. Cut the log in half, and place both halves in an oiled 8” x 5” pan, cut sides facing up.
- Proof at 95 ºF (35 ºC) for 60-90 minutes. Preheat oven to 350 ºF (175 ºC).
- Bake in pre-heated oven for 35 minutes.
Source
San Francisco Baking Institute, 2-Day Japanese Home Baking Course