Persillade (french pronunciation: ​[pɛʁsijad]) is a sauce or seasoning mixture of parsley (french: persil) chopped together with seasonings including garlic, herbs, oil, and vinegar.in its simplest form, just parsley and garlic, it is a common ingredient in many dishes, part of a sauté cook's mise en place. if added early in cooking, it becomes mellow, but when it is added at the end of cooking or as a garnish, it provides a garlicky jolt. it is extensively used in french and french-influenced cuisines, as well as in cajun, louisiana creole, and québécois cuisines. a classic french and quebec bistro dish is pommes persillade, cubed potatoes fried in a small amount of oil, with persillade...

Source: Wikipedia