BEST Ever Crispy Salt Butter Roll Bread (This is the MOST DELICIOUS) 

210g bread flour
20g cake flour
5g salt
5g unsalted butter
5g sugar
3g yeast
150g cold water
Salted Butter 10gx6
1. It is salt bread that is crispy on the outside and chewy on the inside like a baguette.
2. Salt bread is best eaten the same day it is made.
Put the remaining salt bread in a zipper bag, store it in the freezer, and then turn it in the air fryer at 170℃ for about 4 minutes and eat it.
3. My oven does not have a steam function, so I steamed it using a stainless steel spoon.
The oven temperature is different for each oven, so check the baking color.
4. Use lukewarm water in cold weather and cold water in summer