** it is "windowpane test" not "windowpan", sorry for my typo

Here is the vanilla custard donut recipe:

1. The donut dough
350g all purpose flour
150g milk
1 whole egg
40g sugar
7g yeast
2g salt
40g soft unsalted butter

2. The custard cream
1 whole egg + 1 egg yolk (or 3 egg yolks)
300g milk
50g sugar
1 vanilla bean (or vanilla extract)
25g all purpose flour

The long puff nozzle tip: https://amzn.to/2V9uqCK
My baking and camera equipments: https://www.amazon.com/shop/thythan

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