Add in your Butter and Crisco and Almond extract and blend until its a cream substance.
add 1 cup power sugar and blend in.
add 1 cup powder sugar and blend in
continue to blend in all cups of sugar just like above ..making sure just 1 cup at a time till all 8 cups are blended into the mixture
add your milk and karo syrup to your blended mixture depending on how well your cake mixer blends you may need to add more milk ( this is make it thinner) and the karo syrup is used to make your icing shiny and smooth!