Tabbouleh Salad with Buckwheat

Name: Tabbouleh Salad with Buckwheat
Ingredients: buckwheat - 1/2 cup; himalayan salt - 1/2 tsp.; black pepper - 3 pinches, ground; sunflower oil - 1 tsp.; water - 1 and 1/2 cup; tomatoes - 2 pcs.; onion - 1/2 or 1 small onion; parsley - 1/2 bunch, leaves; spring onions - 10 - 15 pcs.; spearmint - 3 - 5 large fresh stalks, leaves; sunflower oil - 1 - 2 tbsp. (or olive oil); lemon juice - 2 - 3 tbsp., by taste; black pepper - 3 pinches; himalayan salt - 1/2 level tsp., by taste; brown sugar - 1 - 2 pinches