Thoroughly mix almond paste, melted and cooled chocolate, and chopped almonds.

Knead the mixture on a surface sprinkled with 1 to 2 tablespoons of powdered sugar until a uniform color and consistency is achieved.

Shape the mixture into a roll approximately 6 inches long.

Roll the formed roll in powdered sugar.

Wrap the roll tightly in plastic wrap.

Refrigerate the wrapped roll for at least 12 hours.

After refrigeration, cut the roll into 1/4-inch thick slices before serving.