Last Updated on: December 19, 2025

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🥔🎄 How to Prep Roast Potatoes the Day Before Christmas

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🎄 Introduction: The Easiest Way to Get Ahead on Christmas Dinner

Christmas Day is hectic — timings, oven space, multiple dishes cooking at once.
That’s why prepping your roast potatoes the day before is one of the BEST time-saving tricks.

The good news?
Roast potatoes prepped 24 hours ahead taste just as crispy and delicious as freshly made ones — if you’ve done them right.

Below is the step-by-step method chefs use to get perfect Christmas roasties with zero stress.

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• Large Saucepan for Parboiling

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Helps potatoes dry properly before chilling.
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🥔 Step-by-Step: How to Prep Roast Potatoes the Day Before Christmas

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1️⃣ Peel and Cut the Potatoes

Choose floury varieties:

✔ Maris Piper
✔ King Edward
✔ Rooster

Cut into even-sized chunks.

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2️⃣ Parboil for 8–10 Minutes

Bring salted water to the boil and cook until:

✔ edges are soft
✔ centres are still firm

This is essential for fluffy + crispy roasties.

Drain fully.

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3️⃣ Let Them Steam-Dry Completely

Spread out the potatoes on a tray.

👉 Leave for 2–5 minutes
to remove surface moisture — moisture = sogginess.

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4️⃣ Rough Up the Edges

Gently shake the potatoes in the pan.

This creates the fluffy, crispy bits that make Christmas roasties incredible.

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5️⃣ Lightly Coat in Fat

Use:

✔ goose fat (best for Christmas)
✔ beef dripping
✔ vegetable oil (if vegetarian)

Coat the potatoes lightly — you’ll add more fat when roasting.

Season with salt, pepper, rosemary or thyme.

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6️⃣ Cool the Potatoes Completely

This is one of the most important steps.

Warm potatoes create condensation in the fridge, leading to soggy roasties.

Let them cool until room temperature or cooler.

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7️⃣ Store in the Fridge for Up to 24 Hours

Place the cooled potatoes on a tray or in a container.

Cover lightly — not airtight — so moisture can’t build up.

Store for up to 24 hours.

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🎄 Roasting on Christmas Day

Now for the easy part!

👉 Preheat the oven to 200–220°C

👉 Put a generous amount of hot fat in the roasting tin

(Goose fat gives the ultimate Christmas crunch.)

👉 Heat the fat until smoking

👉 Add the prepped potatoes and roast for:

40–50 minutes, turning halfway.

They will turn:

✔ golden
✔ crispy
✔ fluffy
✔ perfectly festive

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🥔 Alternative Method: Pre-Roast the Day Before

Ideal if your oven will be packed on Christmas Day.

Day Before:

1. Parboil
2. Rough up
3. Coat in fat
4. Roast for 20–25 minutes (pale golden)
5. Cool completely
6. Chill overnight

Christmas Day:

Reheat at 200–220°C for 20–25 minutes until crispy.

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💡 Extra Tips for Perfect Christmas-Day Roasties

✔ Don’t overcrowd the roasting tin

Space = crispiness.

✔ Add garlic towards the end

Prevents burning.

✔ Use a metal tray

Ceramic dishes don’t heat fast enough.

✔ Finish with flaky sea salt

For extra crunch and flavour.

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❌ Mistakes to Avoid When Prepping the Day Before

❌ Storing when still warm

Creates condensation → soggy potatoes.

❌ Adding too much fat in advance

They’ll go greasy overnight.

❌ Sealing in an airtight container

Traps moisture — leads to soft roasties.

❌ Over-parboiling

They’ll collapse when you shake them.

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🌟 FAQs

Can you prep them earlier than 24 hours?

Yes — freeze parboiled potatoes for up to 3 months.

Should you coat in fat before or after chilling?

Lightly before chilling — full coating on the day.

Do prepped potatoes still crisp up properly?

Yes, if cooled fully and added to hot fat.

Can you store parboiled potatoes in water overnight?

No — it washes away starch and stops them crisping.

Do they roast faster on Christmas Day?

Yes — prepped potatoes take around 40–50 minutes.

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