1. Bake the Cupcakes

1. Preheat your oven according to the cake mix instructions and line a cupcake tin with paper liners.
2. Prepare the cake mix as directed on the box using the required eggs, oil, and water.
3. Fill each cupcake liner about two-thirds full with batter.
4. Bake according to the package instructions until a toothpick inserted into the center comes out clean.
5. Remove from the oven and allow the cupcakes to cool completely before filling.

2. Prepare the Filling

1. In a medium bowl, whisk together the instant vanilla pudding mix and cold milk.
2. Continue whisking until the mixture is smooth and fully combined.
3. Let it sit for about 5 minutes until the pudding thickens.

3. Fill the Cupcakes

1. Using a small knife or cupcake corer, cut a hole in the center of each cupcake (about 1 inch deep).
2. Spoon or pipe the prepared vanilla pudding into the center of each cupcake.

4. Make the Ganache Topping

1. Heat the heavy cream in a small saucepan over medium heat until it begins to simmer.
2. Pour the hot cream over the chocolate chips in a bowl.
3. Let it sit for 2 minutes, then stir until smooth and glossy.

5. Top the Cupcakes

1. Spoon the chocolate ganache over the filled cupcakes.
2. Let the ganache gently drip down the sides for a classic bakery-style look.
3. Allow the ganache to set before serving.