For strawberry jelly; Cook according to instructions written at the back of package of jelly. When the jelly cooked , get it from the stove and wait until slightly thickened. Then dip in several places with a knife. Soak with 4 or 5 tablespoons of jelly. On the other hand, cut the strawberries into 2-3 pieces. Place them on top of the cake. Finally, pour the remaining jelly on each side with the help of a spoon. Leave the refrigerator for 1 night.