01 -
Preheat the oven following the instructions on the vanilla cake mix packaging.
02 -
Mix vanilla cake batter according to package directions. Gently fold in 60 g rainbow sprinkles.
03 -
Pour batter into a prepared 33 x 23 cm cake pan. Bake as instructed on the cake mix package. Allow cake to cool completely.
04 -
Using the end of a wooden spoon or similar tool, poke holes approximately 1.25 cm wide throughout the cooled cake surface.
05 -
Whisk 96 g vanilla instant pudding with 375 ml milk until beginning to thicken but still pourable.
06 -
Using a small piping bag or spoon, fill each hole with pudding. Spread any remaining pudding evenly over the cake surface.
07 -
Whisk remaining 96 g vanilla instant pudding with 250 ml milk until slightly thickened. Gently fold in 950 ml whipped topping.
08 -
Spread the whipped topping mixture evenly over the cake. Reserve some for piping additional swirls if desired.
09 -
Scatter additional rainbow sprinkles over the surface. Refrigerate for at least 30 minutes to allow the pudding to set.
10 -
Slice chilled cake and serve as desired. Store leftovers covered in the refrigerator.