In a large bowl, combine the warm milk, 1 tsp sugar, and active dry yeast. Stir gently and let it sit for about 5 minutes, until it becomes frothy.
Add 1 ½ cups flour, salt, the remaining sugar, condensed milk and softened butter to the frothy yeast mixture. Mix the ingredients together.
Sprinkle the reserve flour, a little at a time and keep mixing till you get soft, sticky dough. You may not require all of the reserved flour.
Transfer the dough to a lightly floured surface and knead for about 10 minutes, until it becomes smooth and elastic. You can also use a stand mixer with a dough hook attachment for this step, kneading on medium speed for about 7-8 minutes.
Shape the kneaded dough into a ball. Place the dough in a bowl, cover with a clean kitchen towel, and let it rise in a warm place for about 1 ½ hours, or until it has doubled in size.
Meanwhile, in a small bowl, mix the softened butter and condensed milk until smooth and creamy. Set the filling aside.
Grease a 9x5 inch loaf pan.
Once the dough has risen, punch it down to release the air.
Roll out the dough into a 12 x 8-inch rectangle.
Spread the condensed milk filling over the rolled out. Then cut the dough vertically into four long strips.
Place the strips on top of each other, with the filling side facing up.
Cut the stacked dough into eight equal sections.
Place the filled dough portions into a greased baking pan, as is. Any small empty spaces will be filled up once the dough starts to rise.
Cover the baking pan with a cloth and let the dough rise again for about 1 hour or until it’s doubled in size.
Preheat the oven to 325 F.
Sprinkle cherries and almond slivers on top of the dough.
Bake the bread at 325 F (162 C) for 20 minutes. Then lower the temperature to 300 (148 C) and bake for another 10-15 minutes, or until the bread is golden brown.
Remove the bread from the oven and let it cool in the pan for about 10 minutes.
Transfer the bread to a wire rack to cool completely before slicing.
Enjoy creating and savouring this delightful Japanese Condensed Milk Bread.