Most Amazing Challah

Ingredients (9)

• + 4 (.25 ounce) packages quick-rise yeast add to pantry
• + 4 cups warm water (110 degrees F/45 degrees C) add to pantry
• + 2 tablespoons salt add to pantry
• + ¾ cup white sugar add to pantry
• + 1 cup pareve margarine, melted add to pantry
• ✓ 4 eggs
• ✓ 12 cups bread flour, or as needed
• + ½ teaspoon vanilla extract add to pantry
• + ¼ cup sesame seeds, divided add to pantry