To make only two loaves, halve all ingredients and shape the dough into two loaves instead of four.
Whole Wheat Challah
Substitute up to 2-1/2 cups whole-wheat flour for an equal amount of all-purpose flour. (This dough may take slightly longer to rise.) Nutrition analysis per serving: same as above except 207 calories, 30 g carbohydrate, 8 g total fat, 2 g fiber, 5 g total sugar, 9% iron