Preheat the oven to 350 degrees. Line standard muffin tins with cupcake liners, set aside.
In the bowl of a stand mixer, combine the sugar, flour, cocoa powder, baking powder and salt.
Add in the eggs, milk, water, oil and vanilla. Mix well - scraping down the sides and mixing again.
Divide the batter between the cupcake liners and fill until about 1/2 -⅔ full.
Bake in the preheated oven for 14-15 minutes or until the center is set and a toothpick comes out clean.
Allow to cool before decorating.
For the Topping -
In a medium bowl, combine the heavy cream and chocolate chips. Heat in the microwave for one minute. Stir well until the mixture is smooth. Allow to cool slightly before decorating.
To decorate - scoop a spoonful of chocolate ganache over each cupcake and spread evenly over the top.
Sprinkle the candy coated chocolate chips over the ganache.
Notes
Storage: Cupcakes should be stored in an airtight container in the fridge for up to 3 days.