In a mini food processor, combine the cooked rice with the miso, peanuts, jalapeño, garlic, ketchup, oyster sauce, hoisin sauce, granulated sugar, chili sauce, lemon juice, sesame oil and rice vinegar. Process all of these ingredients until just combined. Add 2 tablespoons of the water and process until a coarse paste forms. Add 2 more tablespoons of water and process until the sauce has a smooth consistency similar to mayonnaise. Add more water if the sauce is too thick.