Premier is bringing back its Mr Kipling Fiendish Fancies, Cadbury Trick or Treat Mini Rolls and Cadbury Cake Bars in Cinder Toffee and Scary Orange variants (rsp: £1) with new, more gruesome packaging.
Mr Kipling Devil Slices a variation of the existing Angel Slices line will also be part of next month's launch.
Meanwhile, United Biscuits is rolling out McVitie's Jaffa Cakes Lemon and Slime Cake Bars (rsp: £1.49) in place of the same flavour Jaffa Cakes that it brought out last year. Jaffa Cakes Spooky Mini Rolls will return for their third year (rsp: £1.49).
Simon Hawkes, head of marketing for Premier's seasonal cakes, expected "excellent" sales, as the festival falls on a weekend.