dasalo:Dunno where my wife got them. They look larger than normaljtoh:dasalo, all my tangzhong recipes are in 1:5 proportion, so 25g bread flour to 125g water sounds right to me.
Based on the hydration % from the recipe, it looks fine. It's about 80+% hydration. (ie. if the large egg is a 55g =+/- 30ml)
The egg used is 60g I think cos the usual Seng Choon 55g size eggs are the common ones.
I usually use large eggs (60g) for some cakes so I am quite familiar with the egg size