The sweet round challah on Rosh Hashanah is a symbolic food. The round shape is meant to show the cycle of the new year, and the sweet flavor is a reminder to have a sweet new year. 

This recipe yields 2 large loaves or 18 rolls.
6 cups flour
4 eggs
1 egg plus 1 teaspoon water (for egg wash)
1 package or 1 tbsp of yeast of rapid rise yeast
1½ cups warm water (110 degrees)
Pinch of salt
4 tbsp sugar
1/3 cup oil

Mix all ingredients, except for egg wash, in a large bowl. Knead dough for 5-10 minutes. This can be made in a mixer with a dough hook. Place dough in greased bowl and let rise for 10 minutes. To create small rolls, separate dough into 18 equal sized pieces. Roll out each piece of dough into a snake-like shape. Coil dough to create a round shape and place on a greased baking sheet. Brush with egg wash. Let rest for 30 minutes. Bake in 350 degree oven for 20 minutes. If making 2 large loaves, bake for 40 minutes or until golden.