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Ham and Cheese Puff Pastry Stacks with Poppy Seed Crust - Flaky, Savory, and Crowd-Pleasing

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Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 8 servings
Ingredients Method

Ingredients
  

  • 1 box puff pastry sheets (typically 2 sheets), thawed but still cold
  • 8–10 ounces thinly sliced ham (deli or leftover baked ham)
  • 6–8 ounces cheese (Swiss, Gruyère, cheddar, or provolone), sliced or grated
  • 2 tablespoons Dijon mustard (plus more to taste)
  • 3 tablespoons unsalted butter, melted
  • 1 tablespoon poppy seeds
  • 1 teaspoon honey or brown sugar (optional, for balance)
  • 1 teaspoon Worcestershire sauce (optional, for depth)
  • 1 large egg (for egg wash)
  • 1 teaspoon water (for egg wash)
  • Pinch of garlic powder or onion powder (optional)
  • Kosher salt and freshly ground black pepper
  • Flour for dusting the work surface

Method
 

  1. Preheat and prep: Heat oven to 400°F (200°C). Line a baking sheet with parchment paper. Lightly flour a clean surface and your rolling pin.
  2. Roll the pastry: Unfold the puff pastry sheets and gently roll each to smooth creases and even out the thickness to about 1/8 inch. Try to keep them rectangular for tidy stacks.
  3. Cut into squares: Using a sharp knife or pizza cutter, cut each sheet into 9 equal squares (about 3x3 inches). You should have 18 squares total.
  4. Make the egg wash: Whisk the egg with 1 teaspoon water. Set aside.
  5. Mix the crust topping: In a small bowl, stir together melted butter, poppy seeds, Dijon, honey, and Worcestershire. Add a pinch of garlic or onion powder if using. Season with salt and pepper to taste.
  6. Assemble the stacks: Place 9 pastry squares on the baking sheet. Brush edges lightly with egg wash. Spread a thin swipe of Dijon on each square (about 1/2 teaspoon). Top with a slice or small mound of cheese, then a folded slice of ham. Cap with another pastry square. Gently press edges to seal and keep layers aligned.
  7. Finish the tops: Brush the tops with egg wash. Spoon or brush the poppy seed butter mixture over each stack, letting a little drip down the sides for extra flavor.
  8. Vent and chill: Use a knife to make a small slit on top of each stack to release steam. For best puff, chill the assembled stacks in the fridge for 10 minutes to re-firm the pastry.
  9. Bake: Bake for 15–20 minutes, rotating the pan halfway, until puffed, deeply golden, and the cheese is bubbling.
  10. Rest and serve: Let the stacks rest 5 minutes so the cheese sets slightly. Serve warm with a simple green salad, grainy mustard, or pickles.