Homemade Napoleon cake

Homemade Napoleon cake

Baking

The Napoleon cake: thin, crispy pastry leaves layered with a butter custard, which should be allowed to rest overnight before serving.

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The Napoleon is prepared here using a simple, butter-based dough, which is quicker than traditional puff pastry. The thin layers of dough are baked one at a time, then layered with a custard made with eggs, milk, and butter. The cake needs to soak in the custard for several hours.

Ingredients and directions

  • Prep time1 hr 30 min
  • Cook time1 hr
  • Resting10 hr
  • Total12 hr 30 min
  • DifficultyHard
  • CostBudget
  • Cooking methodFour
  • Estimated cost$7.21 $0.60 / serving Estimated price; varies by store. Converted from euros at the ECB rate of October 7, 2026.
  • Vegetarian

Ingredients

12 people

Dough

  • $1.85
  • $0.66
  • $0.35

Cream

  • $1.05
  • $0.34
  • $0.12
  • $0.99
  • $1.85

Prices from US supermarkets for 7 of 8 ingredients; Belgian prices for the rest.

Directions

  1. First, prepare the cream. ≈ 3 min
  2. Whisk the eggs and sugar in a mixing bowl until the mixture becomes slightly lighter in color. ≈ 4 min
  3. Pour in into a pot. ≈ 3 min
  4. Add the flour and milk. ≈ 3 min
  5. Mix well to ensure the flour dissolves completely. ≈ 4 min
  6. Cook over medium heat, stirring constantly until thickened, about 6 to 7 minutes.
  7. Remove from the heat and let cool for 10 minutes.
  8. Add the butter. ≈ 3 min
  9. Whip in the mixer until you have a smooth, creamy texture. ≈ 4 min
  10. Place the cream in the refrigerator.
  11. Next, prepare the dough. ≈ 3 min
  12. Place the flour and butter in a mixing bowl. ≈ 3 min
  13. Cut them with a knife or use your fingers to break them down into large pieces. ≈ 3 min
  14. In a separate container, combine the egg and sour cream. ≈ 4 min
  15. Pour this mixture over the buttered flour. ≈ 3 min
  16. Mix by hand until a soft and delicate dough is formed. ≈ 4 min
  17. If the dough is still sticking to your hands, add a little more flour. ≈ 3 min
  18. Divide the dough into 7 equal parts and form into balls (8 if you prefer). ≈ 10 min
  19. Wrap the stretch film around the balls. ≈ 10 min
  20. Place them in the refrigerator for 2 hours.
  21. Preheat the oven to 200 °C.
  22. Roll each ball out into a square of approximately 28 cm, making it very thin. ≈ 10 min
  23. If your mold has a different size, adjust the size of the leaves accordingly. ≈ 3 min
  24. Place the sheet on the pan without greasing it. ≈ 3 min
  25. Use a small amount of paste to repair the tears. ≈ 3 min
  26. Use a fork to prick the leaf in 3 or 4 places so that it doesn’t expand too much. ≈ 3 min
  27. Cook each leaf for 6 to 8 minutes, until the top is lightly golden brown.
  28. Keep a close eye on it to prevent it from burning. ≈ 3 min
  29. Prepare and cook all the meatballs in the same way.
  30. Carefully stack the cooked leaves. ≈ 3 min
  31. Remove the most cooked or broken part of the leaf and set it aside. ≈ 3 min
  32. Layer the leaves, spreading a generous amount of cream between each one. ≈ 3 min
  33. If a leaf has become swollen, gently press it with a fork. ≈ 4 min
  34. Apply more cream to the edges, as these are the areas that absorb it most slowly. ≈ 4 min
  35. Sprinkle the top of the cake with some of the reserved crumbs. ≈ 2 min
  36. Sprinkle the remaining crumbs over the sides. ≈ 2 min
  37. If the edges aren’t very crisp, don’t add the crumbs immediately: let the cake soften, level the edges with a knife, and then add the crumbs. ≈ 3 min
  38. Allow the cake to soak for at least 7 to 8 hours at room temperature, or overnight.
  39. Serve the cake once it is cooked through. ≈ 2 min

The bill

Homemade Napoleon cake

  • 200 g of cold butter, cut into large pieces$1.85
  • 500 g of flour$0.66
  • 1 egg$0.35
  • 3 eggs$1.05
  • 300 g of powdered sugar$0.34
  • 6 tablespoons of flour (not too fluffy)$0.12
  • 1 liter of milk$0.99
  • 200 g of butter$1.85

Total$7.21

that's $0.60 per person

Estimated price; varies by store.

Before you start

Ingredients

  • 200 g of cold butter, cut into large pieces
  • 500 g of flour
  • 1 egg
  • 250 g sour cream
  • 3 eggs
  • 300 g of powdered sugar
  • 6 tablespoons of flour (not too fluffy)
  • 1 liter of milk
  • 200 g of butter

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