1-Preheat your oven and grease the baking dish: Start by preheating your oven and greasing a 9×13 inch baking dish to set the stage for this colorful dessert. The process involves preparing a white cake mix as directed, then adding pastel food coloring to create eye-catching swirls that capture the spirit of spring.

2-Prepare the cake mix and color the batter: First, preheat your oven to the temperature specified on the cake mix box, usually around 350°F, and grease your baking dish thoroughly. Prepare the cake mix with the required eggs, water, and oil as per the package instructions, then divide the batter equally into four bowls. Add a different food coloring blue, green, pink, or yellow to each bowl and mix gently to keep the colors vibrant.

3-Add colored batter to baking dish and bake: Next, drop spoonfuls of each colored batter alternately into the prepared baking dish, leaving some space between them to allow for layering. Once all the batter is in the dish, tap it lightly to flatten and swirl the colors gently with a spoon or knife. Bake for about 30 minutes or until a toothpick inserted in the center comes out clean, then let it rest for 10 minutes before moving on.

4-Poke holes and add pudding mixture: After cooling slightly, use the handle of a wooden spoon to poke holes about an inch apart all over the cake. In a separate bowl, combine the 2 boxes of instant white chocolate pudding mix with 3 1/2 cups of milk until smooth, then pour this mixture over the cake to fill the holes and spread it evenly on top. Refrigerate the cake to set for at least an hour.

5-Prepare and spread topping: For the topping, beat 2 cups of heavy cream with 1 teaspoon of vanilla extract until soft peaks form, then add 1/4 cup of powdered sugar and beat until stiff peaks form. Spread this whipped cream over the cooled pudding layer and decorate with sprinkles just before serving to prevent color bleeding. This step-by-step approach ensures a moist, flavorful cake that’s perfect for festive occasions, with preparation taking about 20 minutes, baking 30 minutes, and total time around 1 hour and 30 minutes.