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Chestnut, Spinach & Blue Cheese en Croûte

Chestnut, Spinach & Blue Cheese en Croûte with golden puff pastry, sliced open to reveal a hearty filling of vegetables, chestnuts, and cheese.

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Chestnut, Spinach & Blue Cheese en Croûte is a festive vegetarian main dish wrapped in golden puff pastry, filled with a rich, creamy mixture of chestnuts, spinach, and tangy blue cheese. Perfect for holiday gatherings or dinner parties, it’s make-ahead friendly and absolutely crowd-pleasing.

Ingredients

  • Leeks – 500g
  • Garlic cloves, thinly sliced – 3
  • Butter – 50g
  • Baby Spinach – 240g
  • Chestnut purée, canned – 415g
  • Cooked chestnuts – 200g, chopped
  • Eggs, large – 3 (plus 1 for egg wash)
  • Nutmeg – 1/2 tsp
  • Fresh breadcrumbs – 85g
  • Blue cheese, crumbled – 220g
  • Puff pastry – 500g
  • Black pepper – 1/2 tsp
  • Salt – to taste

Instructions

  1. Slice leeks and garlic. Wash spinach and set aside.
  2. Sauté leeks and garlic in butter for 10 minutes until soft. Transfer to a large bowl.
  3. Wilt spinach in the same pan. Cool and squeeze out all excess water.
  4. Mix spinach into leeks. Add chestnut purée, beaten eggs, chopped chestnuts, breadcrumbs, blue cheese, nutmeg, salt, and pepper. Mix well and chill for at least 1 hour.
  5. Preheat oven to 390°F (200°C fan).
  6. Roll out puff pastry into a rectangle on a floured surface. Place on lined baking sheet.
  7. Brush edges with beaten egg. Spoon filling down one side of the pastry.
  8. Fold pastry over filling, seal edges, and brush top with more egg wash. Cut small steam vents.
  9. Bake for 40 minutes. Remove, brush with more egg wash, and bake 10 minutes more.
  10. Cool slightly before slicing and serving.

Notes

  • Mix blue cheese with cheddar for a milder flavor if desired.
  • Filling can be made up to 2 days in advance and refrigerated.
  • Freeze uncooked en croûte for later baking—add 10-15 mins to baking time.
  • Ensure spinach is fully drained to avoid soggy pastry.

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