Step 1: Preheat the Oven: Begin by preheating your oven to 400°F (200°C).
Step 2: Make the Dough: In a medium saucepan, combine the water, whole milk, unsalted butter, granulated sugar, and salt. Bring to a boil over medium heat, then remove from heat.
Step 3: Add Flour: Quickly add the all-purpose flour, stirring vigorously until a ball forms and pulls away from the sides.
Step 4: Incorporate Eggs: Allow to cool for 5 minutes. Add the eggs one at a time, mixing well until smooth.
Step 5: Pipe the Dough: Transfer to a piping bag and pipe mounds on a parchment-lined baking sheet.
Step 6: Bake the Puffs: Bake for 20-25 minutes until golden brown and puffed up.
Step 7: Cool the Puffs: Remove from the oven and let cool on a wire rack.
Step 8: Prepare the Filling: Whip the cream with sugar and vanilla until stiff peaks form.
Step 9: Fill the Puffs: Cut a small hole in the bottom of each puff and fill with whipped cream.
Step 10: Garnish and Serve: Garnish with raspberries and dust with powdered sugar before serving.