Peel and slice potatoes. Place in water to prevent oxidation. In a blender, blend oil, tofu, water, tamari, yeast and cashew butter. In a large, oiled pan, mix blended sauce with the sliced potatoes, onion and garlic. Pre-heat oven to 180C/350F and bake. Stir periodically while baking. When potatoes are almost thoroughly cooked (pull 1 out and test in 45 minutes), add sea salt and pepper to taste. Sprinkle with paprika. Cook until potatoes are completely soft.