Rhubarb and Custard Biscuits: Sweet, Tangy & Comfortingly Classic

Rhubarb and custard biscuits are a nostalgic bake inspired by the classic British flavour pairing. They combine the sharp tang of rhubarb with the creamy sweetness of custard in a soft or crunchy biscuit, making them perfect for tea breaks, lunchboxes, or sharing.

⭐ Recommended Products — 🌱 Rhubarb & Growing Essentials

Rhubarb is a hardy, productive perennial that’s great for desserts, compotes, and early spring harvests. These essentials will help you grow it successfully and enjoy its harvest year after year.

• Rhubarb Crowns / Plants
Established rhubarb crowns are the easiest way to start — strong plants ready to go in the ground or large containers. Look for reliable varieties like Victoria or Crimson King.
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• Rhubarb Forcers
Special covers used in early spring to ‘force’ tender, pale stems sooner than usual — perfect if you want early harvests and sweeter stalks.
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• Rhubarb Seeds & Starter Kits
If you prefer growing from seed, seed packs with quality varieties give you a head start — ideal for sowing under cover before transplanting later.
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• Garden Compost / Soil Improver for Rhubarb
Rich, well-drained compost or well-rotted manure helps rhubarb establish strong roots and produce big, healthy stems year after year.
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• Rhubarb Growing Guide & Plant Care Book
A helpful reference on planting, forcing, feeding, and harvesting — great for beginners or anyone wanting bigger yields.
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🌿 Quick Tip

This guide explains what rhubarb and custard biscuits are, how to make them, and how to get the flavour balance just right

🍪 What Are Rhubarb and Custard Biscuits?

Rhubarb and custard biscuits are homemade biscuits flavoured with rhubarb (fresh, stewed, dried, or freeze-dried) and custard (usually custard powder or custard-flavoured filling).

They can be:

• Soft and chewy
• Crunchy and dunkable
• Sandwich biscuits with custard cream filling

The key is balancing sharp rhubarb with sweet, creamy custard flavour.

🧈 Ingredients for Rhubarb and Custard Biscuits

Biscuit Dough

• Unsalted butter, softened
• Caster sugar
• Plain flour
• Custard powder
• Egg or milk (for binding)
• Baking powder (optional, for softer biscuits)

Rhubarb Element (choose one)

• Finely chopped fresh rhubarb (lightly stewed and drained)
• Dried rhubarb pieces
• Freeze-dried rhubarb, crushed
• Rhubarb jam or compote (swirled in carefully)

Optional Additions

• White chocolate chips
• Vanilla extract
• Pink food colouring (for a classic look)

🥣 How to Make Rhubarb and Custard Biscuits

1️⃣ Prepare the Rhubarb

If using fresh rhubarb:

• Chop finely
• Stew gently with a little sugar
• Drain thoroughly and cool

Too much moisture will soften the biscuits.

2️⃣ Make the Biscuit Dough

• Cream butter and sugar until pale and fluffy
• Mix in custard powder and vanilla if using
• Add flour (and baking powder if using)
• Mix until a soft dough forms

3️⃣ Add the Rhubarb

• Fold in rhubarb gently
• Avoid overmixing to prevent soggy dough

If using freeze-dried rhubarb, add directly to the flour.

4️⃣ Shape the Biscuits

• Roll into small balls or shape into logs and slice
• Place on a lined baking tray, spaced apart
• Flatten slightly with a fork or fingers

5️⃣ Bake

• Bake at 180°C (160°C fan)
• 10–14 minutes, depending on thickness
• Edges should be just golden, centres slightly soft

6️⃣ Cool

• Leave on the tray for 5 minutes
• Transfer to a wire rack to cool fully

Biscuits will firm up as they cool.

🍮 Optional Custard Cream Filling (Sandwich Style)

Mix:

• Unsalted butter
• Icing sugar
• Custard powder
• Splash of milk

Sandwich between two cooled biscuits for a classic custard-cream finish.

🔥 Tips for Perfect Rhubarb and Custard Biscuits

• Drain rhubarb very well to avoid soggy biscuits
• Custard powder adds flavour and colour — don’t skip it
• Freeze-dried rhubarb gives the strongest flavour
• Chill dough if it feels too soft
• Slight underbaking keeps biscuits tender

🌿 Easy Variations

• Crunchy biscuits – bake 2–3 minutes longer
• Soft cookies – add an extra egg yolk
• White chocolate rhubarb biscuits – fold in chips
• Jam swirl biscuits – marble rhubarb jam into dough
• Gluten-free version – use a 1:1 gluten-free flour blend

🍽️ How to Serve

Rhubarb and custard biscuits are perfect:

• With tea or coffee
• As part of an afternoon tea spread
• Packed into lunchboxes
• Given as homemade gifts

Store in an airtight tin for up to 5 days.

🌿 Final Thoughts

Rhubarb and custard biscuits bring together sharp and sweet flavours in a comforting, nostalgic bake. Easy to adapt and simple to make, they’re a brilliant way to use rhubarb in something a little different from crumbles and pies.

A true classic in biscuit form.