"This is an addictive treat of melted chocolate with marshmallows, raisins, dried cranberries, and matzo farfel (small broken pieces of matzo). To make it during the year, substitute pretzel sticks or chow mien noodles for the matzo farfel."
Layer two 2-inch pieces of waxed paper or parchment paper over a sheet of aluminum foil.
Place chocolate in top of a double boiler over simmering water. Stir frequently, scraping down the sides with a rubber spatula to avoid scorching, until chocolate is melted, about 5 minutes. Mix in matzo farfel, raisins, cranberries, almonds, and marshmallows until fully combined.
Divide chocolate mixture into 2 logs about 2 1/2 inches wide. Fold paper and aluminum foil over the logs; smooth the top. Place logs on a baking sheet. Freeze until set, about 30 minutes. Slice into 1/2-inch pieces in the shape of pieces of biscotti.