Soak the black currants in hot water for about 15 minutes, then drain them. Set aside.
Soak the brined grape leaves in warm water for about half an hour.
Heat the olive oil in a large pan. When the oil is hot, add the onions to the pan, and saute until it gets translucent.
Add the pine nuts, black currants, and sugar to the pan, and continue to saute. After about 30-45 seconds, add the soaked rice to the pan. Saute for about a few minutes.
Add the grated tomato, spices, and salt to the pan. Saute them together for about 30 seconds, then pour the water into the pan. Cook for about 5 minutes until the rice is half-cooked without fully absorbing the water. Add the parsley to the pan and stir them together. Set it aside to cool down.
Take the grape leaves from the soaking water, and place them on a clean surface with the vein side up and shiny side down. Then cut off the stem, and save the stems for cooking.
Put ½ tablespoon of stuffing adjacent to the stem of the leaf.
Fold the stem side first, then the two edges over the stuffing. Roll the leaf until it gets a cylindrical shape. Repeat this step for each remaining leaf.
Place the unrolled grape leaves on the bottom of a cooking pot. On this leaf, place the sarmas adjacent to each other.
Put the thin lemon slices on the stuffed grape leaves, then squeeze the lemon on them.
Drizzle the olive oil and pour the water into the pot.
Cover the lemon slice layer with a few grape leaves and put the stems over these leaves so that the stuffed grape leaves do not darken. Close the lid and cook on high heat until the water boils, then reduce the heat to medium-low, and cook for about 90 minutes until it gets tender.
Serve warm or cold. Bon appetit!