Combine all ingredients into a small blender jar, and blend until smooth. It should be the consistency of a smooth cheese sauce; if it seems a little thick, add a tablespoon or two of water to thin it. Set aside.
Cover the top of the pizza shell with your pizza sauce, using the back of a spoon to spread.
Add the cashew cream sauce on top. If you want it to look fancy like mine, apply it in a swirl, starting at the edge and working your way towards the centre. Then, drag a toothpick from the centre to the edge, repeating all the way around the pizza, like spokes on a wheel. Make sure to drag from the centre out, otherwise it won't look pretty.
Bake pizza according to directions for your crust. Once cooked, add dill pickle slices and serve.