Cream shortening and butter with your mixer, add vanilla extract. If you are coloring, this is where I add my food coloring. If you do not add food coloring, the frosting will reaming white.
Gradually add sugar one cup at a time, scraping down the sides and bottom of the bowl after half is added. Add remaining sugar.
Once all sugar has been added, frosting will look dry, add up to 2 tablespoons of milk and beat on medium until fluffy.
When not using, keep the frosting in the fridge, it will keep there in an airtight container for 2 weeks. Re-whip before using.
