Made these little anpans for the kids. Not many. 8 only. I used Adzuki Canned Red bean, blended and made them into fillings.
Recipe (adapted from Yichihye)
Adzuki paste 240g
Bread flour 160g
fresh yeast 8g
unsalted butter 20g
Some bread flour to dust on work area and baking tray
Combine all the ingredients. Not necessary to finish adding the water. Knead the dough into elastic and smooth. Proof for 1 hr. Punch in to release the air. Divide into 8 portions. Rest for 10mins. Shape into round balls and flatten before adding the adzuki paste (30g each). With the filling inside the dough, shape them into round balls and slightly flatten again. I used a measuring tbsp to press into the centre of the dough. Proof 2nd time for 40mins.
Egg glaze and bake in preheated oven at 180d for 15mins.
Note: Dust the tablespoon with flour so it will not stick to the dough.