Improved shelf stable microwave dessert packaged food products for individual servings comprise a cup; a shelf-stable ready-to-heat uncooked microwave bakeable foam product disposed within the cup, and a peelably removable, low gas permeability sealing membrane. The improvements reside in important part in selecting shelf stable food products embodiments having a pH of ≦6 and additionally comprising dried or gelled blue or purple inclusions such as natural or artificial blueberries dispersed within the foam. These inclusions can be colored with natural anthocyanin or artificial Lake pigments. Surprisingly, when the foam has a pH of about 6 or lower, the dried or gelled blue or purple inclusions exhibit color stability for extended times even though the foams are stored at room temperatures. The articles provide high quality finished expanded blue or purple inclusion containing baked dessert goods by microwave cooking and expansion of the foam.