Preheat your oven to 350 degrees F. In a large bowl, whisk together the cake mix and pudding mix. Add eggs, milk and vegetable oil. Mix until you have a smooth batter.
Spray your bundt pan with nonstick spray. Pour the batter in your pan and bake for approximately 40-45 minutes until toothpick comes out mostly clean with moist crumbs attached.
Remove the cake from your oven and let sit on a cooling rack before turning out onto a plate. Spoon frosting into a pastry bag with a tip or a freezer bag zipped with corner cut off.
Once the cake is completely cool, decorate with frosting swiped back and forth all the way around. Set chocolate eggs on top, or use pastel sprinkles.