for base:
use the food processor to mix 3 1/2 cups dates, 2/3 cocoa, nuts and salt until you obtain a moldable paste. Divide into two. Use small round cake form. Put one part of the paste in it and flatten.
With the food processor mix avocado, rest of cocoa and dates and honey to form a smooth paste. Use a part of the chocolate paste to put above the cake base, add a cup of strawberries sliced. Set above the second part of the cake base, carefully flattened. Put the cake on a plate reverse. Add the rest of the paste above and decorate with whole strawberries.