Russule or charcoal burner, a mushroom that closely resembles other bitter, indedible ones.
A mayonnaise sauce made with mustard and with finely chopped gherkins (US: dill pickles) and capers, sometimes with anchovies. This is probably best known mixed with julienne of celeriac to make céleri rémoulade.
Giant puffball. An edible mushroom which slices almost like bread. Use only the smaller ones and they should be heavy and firm. If they are light in weight than they have dried up. Always cut them open from top to bottom with a sharp knife to check the interior
