Tart

The fermentation of lactose by these bacteria produces lactic acid, which acts on milk protein to give yogurt its texture and characteristic tart flavor.

Usually more tart than ice cream, as well as lower in fat, it is different from ice milk and conventional soft serve.

Cheesecake is a kind of rich sweet tart made with cream and fresh cheese (typically cream cheese or ricotta) on a biscuit base.

Other sources identify it as a flan or tart.