01 -
In a stand mixer bowl, combine both flours, yeast, sugar, salt, ice water, and 5 eggs. Mix with a dough hook on low speed for 10 minutes, stirring occasionally to integrate the mixture. Add butter one piece at a time while kneading, allowing each piece to blend fully. Knead until dough forms a ball and slaps the bowl sides. Adjust moisture with water if needed. Cover dough in a buttered bowl, wrap in plastic, and refrigerate for at least 6 hours or overnight.
02 -
After refrigeration, allow dough to warm to room temperature. Divide into two portions. For brioche loaf, roll one half into a 9-inch square. Fold the top third to the center and bottom third to the center, pressing layers together. Tuck ends and place into a buttered 9x5 loaf pan. Cover lightly with plastic wrap and let rise for 2 hours in a warm spot. For buns, roll the other half into a 16x12-inch rectangle, ¼ inch thick. Sprinkle filling evenly, roll tightly, and trim ends. Cut into 12 equally sized slices and place cut side down into a buttered 13x9-inch pan. Cover and let rise until doubled in size, about 2 hours.
03 -
Preheat oven to 350°F. Brush risen loaf with beaten egg. Bake loaf for 35-45 minutes until golden. Bake buns in the 13x9 pan for 35-45 minutes until golden. Let buns cool for 30 minutes before serving. Reheat buns at 325°F for 6-8 minutes, tented with foil.
04 -
Melt butter in a saucepan. Whisk in brown sugar and stir until dissolved. Add honey, cream, and water, whisking until combined. Use immediately or store overnight. Pour into the 13x9 pan and sprinkle with reserved nuts before adding prepared rolls.