Gather all ingredients and preheat the oven to 350 degrees F (175 degrees C).
Mix together cake mix, butter, 2 eggs, and 1 teaspoon vanilla in a large bowl until well-combined. Pat mixture into a 9x13-inch dish.
Mix cream cheese, remaining 2 eggs, and remaining 1 teaspoon vanilla with an electric mixer in a bowl. Slowly beat in confectioner's sugar. Pour over cake layer.
Bake in the preheated oven until golden brown, 40 to 45 minutes. Cool before serving. Enjoy!
