Cream of trumpet soup with hazelnut oil

For 4 people

Rehydrate 40 g of black trumpets

Sauté one minced shallot in butter

Add the black trumpets and moisten with as much filtered rehydration water as cream (250 ml of each for 4 people)

Cook over low heat for 20 minutes

Blend everything together and add a dash of hazelnut oil

Adjust the seasoning and consistency if necessary (with milk)

Serve