Different kinds of natural food ingredients could be in making yoghurt to produce palatable and more  healthy fermented milk. Desert truffle is a popular nutritious food that showed a work was to produce healthy yoghurt supplemented with dessert truffle powder (DTP). Stirred yoghurt was prepared from cow's milk standardized to 3% fat and supplemented with dried DTP at levels of 1, 3 and 5% prior to inoculation with yoghurt culture. Resultant stirred yoghurt was analyzed when fresh and after 3, 6, and 9 days of the cold storage. Chemical composition of yoghurt milk showed an increased protein and total solids contents. Stirred yoghurt with DTP showed a reduction in both apparent viscosity as well as syneresis during storage period. Sensory evaluation revealed that 1% DTP is the most acceptable stirred yoghurt compared to 3 and 5% DTP treatments. There was a correlation between content of phenolic compounds in stirred yoghurt and both quantity of DTP and antioxidant activity. In sum, a healthy stirred yoghurt can be produced by addition of DTP which increased content of phenolic compounds and antioxidant activity of the stirred yoghurt. The highest sensory scores were accounted for 1% DTP.