01 -
Throw the berries, lemon juice, brown sugar, and vanilla into a pot on medium heat. Stir while pressing the berries till they burst and bubble. In a small bowl, mix the cornstarch with water to create a paste, then stir it into the bubbling pot. Cook for two or three more minutes until the mixture thickens a lot. Save a few tablespoons for the frosting, and let both cool down.
02 -
Whisk the bread flour and water together in a small pan on medium heat. Stir nonstop for about 4-5 minutes until you’ve got a thick, paste-like consistency. Pour it into a bowl and set it aside.
03 -
Toss together the flour, yeast, sugar, and salt in the stand mixer bowl. Add the egg, heavy cream, milk, and your tangzhong mixture. Using the dough hook attachment, mix on low for a couple of minutes until it forms a rough dough.
04 -
With the mixer running slow, drop in the soft butter a small piece at a time, letting each piece blend in before adding more. Knead for 8-10 minutes until you’ve got a stretchy, smooth dough.
05 -
Take the dough out, shaping it into a ball by tucking the sides underneath. Lay it back in the same bowl, smooth side facing up. Cover the top loosely with plastic wrap and rest it for half an hour.
06 -
In the meantime, mix the ground cinnamon, sugar, and soft butter in a bowl until totally combined.
07 -
Stretch or roll the dough on a floured table into a big 15x21 inch rectangle with the long edge facing you. Spread the cinnamon mix over it first, leaving a little border at the top, then layer on the cooled berry jam.
08 -
Cut the rectangle into 12 sections (each around 1 3/4 inches wide) using a sharp blade. Roll each piece up tightly from the bottom, then set them into a parchment-lined 9x13 pan.
09 -
Wrap the pan lightly with plastic wrap and let the rolls rise for 1-2 hours until they’re puffy. Start preheating the oven to 325°F (162°C) while you wait.
10 -
As the rolls near the end of their rise, mix the butter, sugar, flour, and cinnamon until it becomes a crumbly mix.
11 -
Sprinkle the crumb mix evenly over the risen rolls. Bake them for 30-40 minutes, or until the insides of the middle rolls hit 185°F.
12 -
While those rolls are cooling a bit, whisk together the powdered sugar, butter, cream, milk, vanilla, and that reserved berry jam into a smooth drizzle.
13 -
Pour the prepared icing over the warm rolls. Dig in while they’re nice and fresh!