Chef John's Croissants

Details

Ingredients

• 1 cup warm water (100 degrees F or 38 degrees C)
• 1 (.25 ounce) package active dry yeast
• ¼ cup granulated white sugar
• 3 ½ cups unbleached bread flour
• 3 teaspoons kosher salt
• 6 tablespoons butter, room temperature, cut into pieces
• 2 sticks unsalted European-style butter
• 1 egg
• 1 tablespoon water