After knowing this method, I became addicted to making it at home. Flaky Croissant

After knowing this method, I became addicted to making it at home. Flaky Croissant
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Ingredients:
300g All-purpose Flour
1/2 cup(120ml) of Water
2 tbsp (25g) Sugar
1\2 tsp(3g) quick-rise yeast
1\4 cup (50g)Butter
1\2 (3g)tsp Salt
120g Butter
Chocolate
One egg yolk+ 1 Tbsp milk