Ferrero Rocher, Swizzels, and Leonidas have effectively split the UK assortment box market into three separate buyer groups — premium gifting, value-driven sharing, and niche indulgence — and each is winning decisively within its own lane. The shared vulnerability across all three is what happens after purchase: packaging damage and short expiry dates cut across every brand and price tier, making this a category-wide fix rather than a single-brand problem.
