Wikipedia
Foodpairing
Foodpairing is a method for identifying which foods go well together. The method is based on the principle that foods combine well with one another when they share key flavor components. Foodpairing is a relatively new method and is often confused with wine and food matching. By contrast, foodpairing uses HPLC, gas chromatography and other laboratory methods to analyse food and to find chemical components that they have in common.
Not to be confused with protein combination theory for vegetarians and vegans.