At Kinder, we have partnered with TerraCycle to offer a free national recycling programme which is an immediate option available to make all of our packaging recyclable across the UK. For more information please visit https://www.terracycle.com/en-GB/brigades/kinder-uk. Kinder Milk Slice is a deliciously hand-held chilled snack. With a delicious fluffy, milky filling infused with a hint of honey, sandwiched between two sponge layers . No artificial colours or preservatives. Find it in the chilled aisle. Sponge Cake with a Milky Filling. Kinder.