A bright, tender slice that smells of sun through linen—zest and milk folded into a crumb that yields with a small, satisfying sigh. The lemon top sets glossy and pale like a dipped horizon; the base is rustic, coconut-sprinkled, and reassuringly crisp.
Why make this recipe
Because lemon slices are a small, ecstatic thing: they travel easily, chill into perfect slices, and balance sweetness with a clean, tart whisper. This recipe is forgiving, requires no elaborate equipment, and pairs beautifully with a smooth curd — try my recommended easy homemade lemon curd recipe for an accompaniment that amplifies the citrus notes.
How to make Lemon Weet-Bix Slice
Begin with attention to texture: the base should be just coarse enough to hold while still melting on the tongue. Toasted coconut and crushed Weet-Bix lend grain and warmth; the lemon topping sets to a satiny finish that gives a bright lift to each forkful. If you love tart pastries, think of this as an ode to lemon that asks for no fussy tempering or folding — only gentle whisking and a patient chill.
Ingredients:
175g butter, melted, 165g caster sugar, 3 Weet-Bix, crushed, 150g self-raising flour, 85g desiccated coconut, 2 x 395g cans sweetened condensed milk, 310ml strained lemon juice
Directions:
Preheat oven to 180C/160C fan-forced. Grease a 20 x 30cm slice pan and line the base and sides with baking paper, allowing the two long sides to overhang. Place butter, sugar, Weet-Bix, flour and coconut in a large bowl and stir to combine. Spread mixture over the base of the prepared pan. Bake for 15 minutes or until light golden. Set aside to cool. Whisk condensed milk and lemon juice together in a bowl until smooth and combined. Pour over the Weet-Bix base. Bake for 20 minutes or until edges are slightly bubbling and the top layer is set. Set aside to cool to room temperature, then place in the fridge overnight to chill. Cut into pieces to serve.
How to serve Lemon Weet-Bix Slice
Cut with a sharp knife into neat rectangles once the slice is thoroughly chilled — the edges should be clean, the top barely springy. Serve cold, on a plate that shows off the pale lemon layer and the nutty base. A thin smear of chilled lemon curd or a small quenelle beside each piece intensifies the citrus; for a bright, tart accompaniment, consider pairing with easy lemon tarts when hosting, to offer variety and contrast.
How to store Lemon Weet-Bix Slice
Keep the slice chilled in an airtight container for up to five days. The fridge helps the lemon layer maintain its glossy set and keeps the base pleasantly firm. For longer storage, slice and freeze between sheets of baking paper in a rigid container for up to one month; thaw slowly in the refrigerator before serving.
Tips to make Lemon Weet-Bix Slice
- Crush the Weet-Bix by hand or pulse briefly in a food processor for a mix of fine crumbs and small shards that create the best texture.
- Use freshly strained lemon juice for clarity and brightness; bottled juice can dull the aroma.
- Allow the baked lemon layer to cool to room temperature before refrigerating to avoid condensation that softens the base.
- For an extra aromatic lift, grate a little lemon zest into the base mixture — no more than a teaspoon, to avoid bitterness.
- If you like a crisper edge, bake the base an extra 2–3 minutes before adding the topping.
A small note on plating: chilled slices are easier to cut cleanly if you warm the knife under hot water and dry it between cuts.
Variations (if any)
- Coconut-Lemon: Toast the desiccated coconut lightly before mixing for a deeper, toasty flavor.
- Almond Base: Replace 50g of self-raising flour with almond meal for a nutty, tender crumb.
- Lighter: Reduce the condensed milk by 100g and add 60ml extra lemon juice for a tangier, slightly less sweet set (the texture will be firmer).
FAQs
Q: Can I use regular biscuits instead of Weet-Bix?
A: Yes — plain tea biscuits or digestive biscuits can be substituted, crushed to a similar texture, though the base will be a touch sweeter and less cereal-like.
Q: Why does the lemon layer sometimes crack?
A: Overbaking or a very hot oven can cause the lemon topping to tighten and crack. Remove it when the edges are just bubbling and the centre is set but still has a soft sheen.
Q: Can I make this slice ahead for a party?
A: Absolutely — it benefits from an overnight chill, which sharpens the lemon flavor and firms the layers, making it ideal for preparing a day in advance.
Q: Is there a dairy-free version?
A: You could try a dairy-free butter and a condensed milk alternative, but expect differences in texture and set — perform a small test batch first.
Q: How do I get very clean slices?
A: Chill overnight, then use a hot, dry knife (wiped between cuts) and press gently rather than sawing to keep edges neat.
Conclusion
If you’d like alternate takes and visual guides, see the thoughtful interpretations at Lemon Weetbix Slice – VJ Cooks and the clear, pantry-friendly version at Lemon Weetbix Slice – The Organised Housewife.
Baking asks for patience; in the quiet pause while a slice chills, the aroma of lemon gathers and quiets into something generous and true.
Lemon Weet-Bix Slice
Ingredients
Method
- Preheat oven to 180C (160C fan-forced). Grease a 20 x 30cm slice pan and line with baking paper.
- In a large bowl, combine melted butter, caster sugar, crushed Weet-Bix, self-raising flour, and desiccated coconut.
- Spread the mixture over the base of the prepared pan and bake for 15 minutes or until light golden.
- Whisk sweetened condensed milk and lemon juice in a separate bowl until smooth.
- Pour the lemon mixture over the baked Weet-Bix base.
- Bake again for 20 minutes until edges are bubbling and the top layer is set.
- Allow to cool to room temperature before refrigerating overnight to chill.
- Cut into neat rectangles with a sharp knife and serve cold.
- Consider pairing with a thin smear of lemon curd.