Sole with butter

4 tablespoons butter , Divided 2 tablespoons olive oil 3 tablespoons flour 2 cups fish stock or 2 cups chicken stock 1 cup mushroom , sliced 1/2 cup celery ,[...]

plain flour (enough to coat the fish) 2 fillets of sole (about 300g, skinned and cleaned) 40 g unsalted butter 2 tablespoons sunflower oil fine sea salt 1/2[...]

2 tablespoons slivered almonds 1 1/2 lbs sole fillets 2 teaspoons butter or 2 teaspoons soy margarine 1 teaspoon canola oil 2 tablespoons white wine 1[...]