🦌 イスパタ is Hirschhorn-Salz in German. It's sulphuric, but the smell goes away when steaming. You can also use 1.5 gr baking powder instead.

➡️ Cook egg and 白あん together on low heat until no longer sticky, then strain and knead again. (Alternatively, just boil an egg, peel off the egg white, strain the egg yolk and mix that in.) Add powders, then separate 20% of the dough and colour it red (or what ever colour the season commands!). The colour will intensify in the steam, so don't overdo it!

♨️ Steam them on high heat for 7-8' on a baking sheet.