A show-stopping twist on the classic British dessert. This towering four-layer cake features moist, date-sweetened sponges with the signature flavor of sticky toffee pudding. It is layered with a light vanilla buttercream to balance the richness, heavily drizzled with homemade salted toffee sauce, and topped with crunchy walnuts. Perfect for celebrations, this cake is 'fun yet hard' as described, requiring patience to bake and assemble but offering an incredible reward.