We highly recommend Tromborcino Albenga: rarely offered for sale this is a fantastic and beautiful variety: bell ended, gently curved and able to grow up to 1m in length! We suggest that if you want the best taste and to encourage more fruit then harvest when about 30cm. When larger they can be roasted - we cut these larger ones into chunks, drizzle themwith oil and give them a generous helping of herbs.
This amazing variety can be encouraged to climb, they need a firm supporting structure (an arch way is a fun choice) and need to be tied in regularly. They are quite sturdy so the fruits will simply damgle down even at a large size.
You might be advised not to show them to your mother-in-law or anyone with a nervous disposition!