Our Special Challah

Yield:	24 Servings
Categories:	Breads, Jewish

2	pk	Yeast; (or 1 Israeli)
4	c	White bread flour; approximately
4	c	Whole-wheat flour
1	tb	Salt
1/2	c	Sugar
1/3	c	Oil
5	lg	Eggs
1 1/4	c	Warm water
1		Egg; beaten
		Sesame seeds