To make the chocolatey topping, in a small bowl, combine Cool Whip with cocoa mix. Stir until completely mixed. Cover and refrigerate.
In a tall glass, combine powdered creamer with 2 tablespoons hot water and stir to dissolve. Add soymilk and pudding mix. Stir until mostly dissolved. Transfer contents of the glass to a blender.
Add ice cream and ice to the blender. Blend at high speed until thoroughly mixed. If needed, remove blender from the base, stir mixture, and blend again.
Pour into the tall glass. Gently stir in the sprinkles.
If you want to get fancy with your chocolatey topping, spoon it into one of the bottom corners of a plastic bag; snip off the tip of that corner to create a small hole, and pipe the topping through the hole into a swirl over your shake. Or keep things simple and just spoon on the topping! If you like, top with a few extra sprinkles. Enjoy!