Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

In a medium saucepan, combine water, butter, and salt, bringing it to a boil over medium heat.

Once boiling, add all-purpose flour at once, stirring until the dough pulls away from the sides.

After cooling slightly, add the eggs one at a time, mixing until smooth and glossy.

Drop mounds of dough onto the baking sheet, spacing them about 2-3 inches apart.

Bake for 25-30 minutes until golden brown, avoiding opening the oven door.

After baking, pierce each puff with a toothpick to release steam and cool on a wire rack.

In a bowl, whisk together whole milk and pudding mix; beat cream with sugar and vanilla until stiff peaks form.

Fold whipped cream into pudding mixture, then fill cooled puffs and dust with powdered sugar.