Preheat the oven to 220°C, 200°C fan, Gas 7. Place your baking tray in the oven for about 10 minutes for extra-crispy bases.  Dust the counter with a little flour and unroll the puff pastry sheets. Cut 10cm rounds (or mini rounds for nibbles).  Leaving a 1cm edge, prick each round with a fork to help create a flared edge and flatter base.  Place pastry rounds on baking parchment. Spread crème fraîche in the centre (stay inside the edge).  Top with sautéed bacon (optional), caramelised onions, sliced turkey, a drizzle of olive oil, seasoning, a spoon of cranberry sauce, then cheese.  Bake on the hot tray for 15–20 minutes until puffed and golden. If needed, increase heat by 20 degrees briefly to finish.  Serve immediately.

Best Leftover Turkey Tarts

There’s a point in the Christmas stretch where the fridge is packed, everyone’s a bit “same again?”, and you want something that feels new without starting from scratch.

These leftover turkey tarts are that reset button: store-bought all-butter puff pastry, a creamy layer of crème fraîche (or béchamel), caramelised onions, turkey, a hidden spoon of cranberry, then cheese that does what cheese does in a hot oven.

It’s the leftover sandwich, upgraded and made crisp.

View full recipe

Why these turkey tarts work

Because puff pastry is a show-off. Give it a hot tray and it puffs up like it’s been waiting all year for its moment. The fillings are already cooked, so you’re really just aiming for three things: a properly crisp base, warmed-through turkey, and cheese that bubbles into the corners.

At a glance

  • Makes: 4–6 x 10cm tarts (or mini tarts for drinks)
  • Prep time: 15–20 minutes (plus time if caramelising onions)
  • Cook time: 15–20 minutes
  • Good for: Christmas leftover recipes, easy starters, low-effort lunches
  • Best bit: that spoon of cranberry you “find” mid-bite

To prepare the Best Leftover Turkey Tarts | Puff Pastry Christmas Leftovers

Step 1: Heat the oven + tray

Preheat to 220°C (200°C fan) / Gas 7. Put your baking tray in the oven for 10 minutes so the bases go extra crisp.

Step 2: Cut the pastry

Dust the counter with a little flour. Unroll the pastry and cut 10cm rounds (use the edge of a bowl to trace). For nibbles with drinks, go mini and use cutters.

Step 3: Prick for a proper edge

Leaving a 1cm border, prick the centre with a fork so it’s “dimpled”. This helps the middle stay flatter while the edge puffs up.

Step 4: Build the tarts

Put the rounds on baking parchment (same size as your tray). Spread a happy dollop of crème fraîche in the middle (stay inside the border). Add bacon (if using), caramelised onions, turkey, a drizzle of olive oil, then season. Spoon over cranberry and finish with cheese.

Step 5: Bake

Slide the parchment onto the hot tray and bake on the upper rack for 15–20 minutes, until the pastry is puffed and deep golden. If they need a final push, crank the heat up by 20 degrees for the last couple of minutes.

Step 6: Serve

Best served straight away. A sharp, mustardy salad alongside keeps things lively.

Caramelised onions (quick guide)

Slice 3 large onions. Cook on low with oil (and a knob of butter if you like), covered until soft, then uncovered until deep golden, stirring often. Add a splash of water if the pan catches. Cool before topping the tarts.

Ingredients

  • Makes as many tarts as you have leftovers!
  • Store-bought all-butter puff pastry sheets
  • Small tub crème fraîche*
  • Bacon diced and sautéed, optional
  • Caramelised onions**
  • Leftover turkey, thinly sliced (ham works super well too)
  • Leftover cranberry sauce
  • Melting cheese like Gruyère, Emmental or Mozzarella, sliced or grated
  • Flakey salt (Maldon salt is lovely)
  • Freshly ground pepper

Recipe Notes

  • Hot tray = crisp base. Preheating the baking tray is the difference between golden and “a bit damp underneath”. Don’t skip it.
  • Keep the centre light. Puff pastry hates heavy, wet toppings. Use a thin layer of crème fraîche/béchamel and don’t pile on the cranberry.
  • Mind the order: creamy layer first (acts as a barrier), then onions, then turkey, cranberry, cheese. Cheese on top helps everything stay put and browns nicely.
  • Turkey thickness: slice it thin so it warms through in the bake time without drying out. If it’s chunky, warm it briefly first or give the tarts an extra couple of minutes.
  • Cranberry placement: a small spoon on top gives you that glossy “Christmas” finish. If your sauce is very loose, tuck some under the cheese to stop it running.
  • Cheese choice: Gruyère/Emmental gives depth; mozzarella gives stretch. If using a stronger cheese, mix it with a milder one so it doesn’t dominate.
  • Ham swap: works brilliantly, but go easy on flaky salt. Pepper and onion sweetness are usually enough.
  • Mini tart version: use smaller cutters, keep toppings tight, and watch the bake time—mini tarts colour faster.
  • Make-ahead without sogginess: cut and prick pastry rounds, prep toppings, and keep everything separate. Assemble only when the oven and tray are hot.
  • Reheat properly: if you have leftovers, reheat in a hot oven until crisp again. Microwave makes pastry chewy.
  • Allergen note: contains gluten (puff pastry) and dairy (crème fraîche/cheese).

Recipe FAQS

  • What are the best recipes for Christmas leftover recipes with store-bought ingredients?
  • Make these as mini tarts: store-bought puff pastry, leftover turkey, cranberry, cheese. They land like a party snack, but they’re basically fridge-clearing in disguise.
  • What are the best Christmas leftover recipes when you can’t face another sandwich?
  • Anything that changes the texture. Puff pastry tarts are ideal because the base turns crisp, the toppings warm through quickly, and the whole thing feels fresh even though it’s built from leftovers.
  • Can I use store-bought puff pastry for these tarts?
  • Yes. All-butter puff pastry gives the best flavour and lift, and it’s exactly what makes this a low-effort Christmas leftovers recipe.
  • How do I stop puff pastry tarts going soggy on the bottom?
  • Preheat the baking tray in the oven, bake hot, and don’t overload with wet fillings. The hot tray gives the pastry an immediate crisp base.
  • Can I make these ahead?
  • You can prep components ahead (cut and prick pastry rounds; get toppings ready), but bake close to serving so the pastry stays crisp.
  • What can I use instead of crème fraîche?
  • Béchamel works really well. You just want a creamy layer to bind the toppings and protect the pastry.
  • What if I don’t have turkey?
  • Ham is a brilliant swap. Go easy on added salt because ham brings plenty.
  • Do I need caramelised onions?
  • They’re the flavour base, but if you’re short on time you can use gently softened onions instead. The tarts will still work; they’ll just be less sweet and deep.
  • What cheese is best for turkey tarts?
  • Choose a good melter: Gruyère, Emmental or mozzarella. A mix is even better—one for flavour, one for stretch.
  • How long do leftover turkey tarts keep?
  • They’re best on the day. If you have leftovers, refrigerate in an airtight container and reheat in a hot oven until crisp again. Avoid the microwave; it softens the pastry.
  • Can I freeze them?
  • Freezing baked puff pastry tarts can dull the crispness. If you want to get ahead, freeze the cooked turkey separately and assemble/bake the tarts fresh.
  • What should I serve with leftover turkey tarts?
  • A sharp green salad with a mustardy dressing cuts through the richness and makes them feel like a proper lunch or starter.
  • Are these tarts gluten-free?
  • Not as written (puff pastry contains gluten). If you use gluten-free puff pastry, check any béchamel, cranberry sauce and cheese labels too.

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