Bake the Cake – Prepare the cake mix according to package instructions, adding food coloring if desired for a pastel effect. Bake in a 9x13-inch pan and let it cool completely.
Poke and Fill with Pudding – Use the handle of a wooden spoon to poke holes evenly across the cake. Prepare the instant pudding as directed, then pour it over the cake, ensuring it seeps into the holes for extra moisture and flavor.
Top with Whipped Cream – Spread a thick layer of whipped cream (or Cool Whip) over the pudding-soaked cake.
Decorate for a Festive Touch – Sprinkle on pastel M&Ms, coconut, sprinkles, or even add Peeps for a fun and colorful finish.
Chill and Serve – Refrigerate for at least 2 hours before slicing. Serve chilled and enjoy this creamy, delightful treat!