Cookies taste delicious in mouth.

Meaning: The baked goods have a pleasing flavor when eaten.

Choice of Words: Cookies are baked goods often made with flour, sugar, butter, and eggs. Taste is the sense of perceiving the flavor of something by contact with the tongue and palate. Delicious means very pleasing to the taste. In is a preposition that indicates a location or position. Mouth is the opening in the face through which food is taken in.