In addition to again some simple staples you should have on hand; a blender is handy too.
Put all your ingredients into the blender and blend everything up!
You get a beautiful smooth, red substance when it's mixed up!
Place it in the freezer for a few hours, scrape it around let it set again and your done.
Check the recipe out here: http://www.myrecipes.com/m/recipe/strawberry-granita-0