60g each of water, milk, butter, and cake flour,
1g salt,
2 eggs (I think 3 would be needed, but I was too lazy to peel one more)
I adjusted the consistency by pouring in milk little by little)
It yielded 28 pieces.
I baked them for 25-30 minutes straight at 200/170 without changing the oven temperature,
and they turned out beautifully without collapsing.

