Mix equal parts flour and boiling water in a small bowl to make the yudane. This will keep the bread soft!Also, mix seeds and boiling water in another bowl.
Add all of the dough ingredients to the bowl of a stand mixer with the dough hook attachment. Mix for 5 minutes.At first, the dough will be wet and shaggy.
Transfer the dough to a baking sheet full of sunflower and pumpkin seeds to top the wet dough with seeds.Then, move the dough to a bread loaf pan to proof.