Preheat oven to 325 degrees F. Grease and flour a 9 inch square pan. Sift together the flour and baking powder. Set aside.
In a large bowl, combine together yogurt, sugar, eggs, oil and vanilla. Beat on medium speed for 2 minutes. Beat in flour mixture until smooth. Pour batter into prepared pan. Bake in the preheated oven for 45 minutes, or until a toothpick inserted into the center of the cake comes out clean.
To make the frosting: in a medium bowl combine the melted chocolate and sweetened condensed milk. Beat for 2 minutes. Pour in 3 tablespoons milk and beat until creamy. Frost cake while still warm
Ingredients:
