Best Water Challah - Kosher.com

Ingredients

• 500 milliliters warm water (200 milliliters boiling water and 300 milliliters cold water)
• 2 tablespoons sugar
• 2 tablespoons dried yeast, such as Gefen
• 2 tablespoons salt
• 1 kilogram any bread flour, such as Glicks
• 7 to 10 tablespoons sugar (adjust to preference)
• 1 cup oil, such as Gefen Canola Oil
• beaten egg, for egg wash