Florence's Famous Cinnamon Rolls

Details

Ingredients

• 2 (.25 ounce) packages active dry yeast
• ¼ cup warm water (110 degrees F (43 degrees C))
• ½ cup instant potato flakes
• 1 ½ cups milk
• ½ cup water
• ⅓ cup white sugar
• 1 ½ teaspoons salt
• 2 eggs
• 6 cups all-purpose flour
• ½ cup margarine, softened
• ⅓ cup butter, softened
• ¾ cup brown sugar
• 1 ½ tablespoons ground cinnamon
• ½ cup raisins
• 1 ½ cups unsifted confectioners' sugar
• 1 tablespoon butter, softened
• ⅛ teaspoon vanilla extract
• 2 tablespoons warm water, or as needed