Combine biscuits, cocoa, butter and milk in a bowl and knead until the mixture is smooth, soft but compact.
With your hands just damp, divide the dough into 6 parts and shape each piece to form the base of your pine cone, a sort of cone.
Finally, starting from the base of the cone, start adding the cereals to simulate the flakes of your pine cones.
Let it rest in the fridge for at least 30 minutes.
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