Ingredients
Plain yogurt (1 cup), chocolate chips (1/2 cup), cornstarch (2 tsp), vanilla extract (1 tsp), sugar (3/4 cup) and low fat milk (12 ounce).

Method of preparation:-
Take a saucepan of medium size, place it over high heat. Mix cornstarch and sugar in it and stir the mixture properly. Slowly add the evaporated milk in it and then add chocolate chips in it. Reduce the heat to medium and keep it to simmer until the mixture becomes thick and it gets bubbly. Take off the pan from heat and keep it to cool slightly until the mixture gets lukewarm. Add vanilla extract and yogurt in it and then place it in the refrigerator until it gets cold. Now the chocolate frozen yogurt gets ready to serve.