Mix the garlic, shallots and parsley with the butter and season with pepper and sea salt.
Cook the mussels in the white wine for 3 minutes. Remove the top pans.
Fill the knofibutter into the shell halves, place them next to each other on a baking sheet and bake at 200 ° C for 5-8 minutes. The butter should then be light brown.
Arrange in circles on plates and garnish with parsley and mild chilli. Serve with baguette.