This Easy Twinkie Bundt Cake is SUPER simple and even better than the real thing!
Preheat oven to 350 degrees. Generously spray bundt pan with nonstick cooking spray with flour.
In a large bowl, beat cake mix, pudding mix, eggs, melted butter and water with a hand mixer until smooth and well combined. Pour the batter into the prepared pan smoothing the top and bake until a toothpick inserted into the cake comes out clean, about 40-45 minutes. Let the cake cool for 10 minutes before inverting onto a wire rack to totally cool. Once cool carefully place the cake back into the bundt pan.
In a large bowl, beat butter until light and fluffy using a hand mixer. Add the marshmallow creme, confectioners' sugar and vanilla. Beat until smooth. Add two tablespoons heavy cream and continue to beat. If filling is still stiff, add the two remaining tablespoons. (I added all 4 tablespoons) Transfer filling to a piping bag.
Using a teaspoon, scoop out about 8-10 large holes at the bottom of the cake (as pictured above) making sure you don't cut through to the top of the cake. Pipe the filling into the holes. Carefully invert the cake onto a cake plate. Dust with powdered sugar.