Heat treat the white cake mix by spreading it evenly on a parchment-lined baking sheet and bake it at 350 degrees Fahrenheit for 5 minutes, stirring halfway through. Let it cool completely.
In a large bowl, mix the cooled cake mix, whipped topping, vanilla pudding or yogurt, and a few drops of green food coloring. Whip with a hand mixer until fluffy and smooth.
If needed, add more green food coloring to achieve the desired color.
Transfer the dip to a serving bowl and top with red heart sprinkles.
Serve with an assortment of cookies, fruits, or pretzels for dipping.