1: Preheat oven to 220°C or 428°F. Make 450 g choux pastry (pâte à choux). Using a forcing bag, pipe small heaps of dough (about 1 cm or 0.8 inch diameter) on a baking sheet. Round off the small peaks with a tablespoon dipped in milk. Sprinkle a pinch of sugar on each heap.
2: Put in the oven and cook until choux are golden brown. Leave to cool on a rack.
3: With a steak knife, split each choux in half, horizontally.
4: Fill each choux with a teaspoon of vanilla ice-cream.
5: And finally, top with plenty of chocolate sauce, warm or hot, and serve immediately.
Remarks
Classic profiteroles, as in this recipe, can be varied many ways: "inversed" with chocolate ice-cream and custard (crème anglaise), "mint out" with chocolate ice-cream, and mint crème anglaise or "mint in" with mint ice-cream and chocolate sauce, etc. If you like them, you can sprinkle chopped almonds with the sugar top of dough heaps. It's a dessert that can easily be made in advance, but filling with ice-cream and topping with chocolate sauce must be done at the last minute. Contrary to most other recipes and websites, I think that profiteroles should be made with small "bite-size" puffs rather than big ones which need to be cut before eating. You should be able to eat profiteroles with a teaspoon.