I start with a small plastic food container. I use plastic in case the vessel were to slip off of my bench, it would not shatter in my shower.
I use 'baking' sugar because it is a very fine grind and will not microscopically scratch your skin the way raw sugar can. I add 1/3 cup of sugar then drizzle about 2 tablespoons of extra virgin olive oil on top. I don't actually measure any of the ingredients, I add them on a visual 'that looks good' basis - I don't want to waste time or water washing measuring cups and spoons.