Easy Challah I

Ingredients

• 1 package active dry yeast
• 1 tablespoon brown sugar
• 3/4 cup warm water plus 1 tablespoon, divided
• 1/4 teaspoon ground saffron
• 3 to 3-1/2 cups flour
• 2 eggs
• 3 tablespoons margarine, softened
• 3/4 teaspoon salt
• 1 teaspoon sesame seeds