Method:
Put sunflower seeds and almonds into a large bowl, cover by 2 inches with water, cover and set aside at room temperature to let soak for 10 to 12 hours; drain well.
Pulse sunflower seeds and almonds in a food processor until very finely chopped, scraping down the sides of the bowl as you go. Transfer to a large bowl and stir in celery, pickles, onions, dill, maple syrup, lemon juice, kelp, pepper and salt. Serve immediately, or cover and chill until ready to serve.