Ingredients

• Nonstick cooking spray
• One 18 1/4-ounce package yellow cake mix, such as Dr. Oetker Organic Cake Mix
• 1/2 cup reduced-fat buttermilk
• 1 tablespoon canola oil
• 1 egg, lightly beaten
• One 8-ounce package neufchatel cream cheese
• 3/4 cup confectioners' sugar
• 1/4 cup plain nonfat Greek-style yogurt
• 1 tablespoon melted butter
• 1 teaspoon vanilla extract

Instructions

1. For the cake: Preheat the oven to 350 degrees F. Spray a 9-by-9-inch baking dish with nonstick cooking spray.
2. Place the cake mix, buttermilk, oil and egg in a large bowl and, using an electric hand mixer, blend together until smooth. Pour the mixture into the prepared baking dish.
3. For the filling: Beat the cream cheese until smooth. Beat in the sugar, yogurt, butter and vanilla. Spread over the cake mixture. Bake 40 to 45 minutes. You want the center to be a little gooey, so do not over bake.