Classic Napoleon Cake (Mille-feuille)
Crispy layers of puff pastry with delicate pastry cream — Napoleon cake, known in France as mille-feuille. Requires patience, but the result is worth it.
Instructions
Puff Pastry (if making from scratch)
- 1
Mix flour, salt, vinegar, and water. Knead into a soft dough, wrap in plastic, and chill for 30 minutes.
- 2
Roll dough into a rectangle. Place cold butter slab on half the dough, fold the other half over.
- 3
Perform 4–5 "turns" (double or single folds) with 30-minute chilling between each.
Baking the Layers
- 4
Preheat oven to 200°C (400°F).
- 5
Divide dough into 3–4 pieces. Roll each very thin (2–3 mm) into a baking-sheet-sized rectangle.
- 6
Transfer to a parchment-lined baking sheet. Dock thoroughly with a fork.
- 7
Cover with another sheet of parchment and place a second baking sheet on top (to prevent uneven rising).
- 8
Bake 15–18 minutes until golden.
- 9
Crush one of the layers into crumbs for topping.
Pastry Cream
- 10
Heat milk with vanilla extract until steaming (don't boil).
- 11
Whisk yolks with sugar and cornstarch until smooth.
- 12
Pour hot milk in a thin stream into the egg mixture, whisking constantly.
- 13
Return to medium heat and cook, stirring constantly, until thick (2–3 minutes after it starts bubbling).
- 14
Remove from heat, add butter, stir. Press plastic wrap directly onto the cream surface and cool completely.
Assembly
- 15
Whip cold cream to soft peaks. Fold into cooled pastry cream for a lighter texture.
- 16
Spread cream evenly between pastry layers.
- 17
Top with pastry crumbs and powdered sugar.
- 18
Refrigerate for at least 6–8 hours (overnight is best) so the layers absorb the cream.
Chef's Notes
Use quality butter (82%+ fat) for the pastry — this is the main secret of crispy layers. Store-bought puff pastry works great too if you don't want to make your own. Napoleon is most delicious on the second day when the layers fully absorb the cream.