Introduction
I have an admission to make. A meal can be as good as it likes, but I do not consider it properly finished until dessert arrives. Savoury food fills the stomach, but dessert satisfies something else entirely.
Of all the desserts I keep coming back to, lemon tart sits at the top. There is something about the way sharp lemon and sweet sugar meet in a creamy curd that just works. Add a crisp, buttery biscuit base and you have one of the most elegant desserts you can make without touching a sheet of pastry.
This is the recipe our team at Diamond Blue Catering returns to whenever we want a dessert that looks impressive, tastes genuinely special and does not require advanced patisserie skills. It suits dinner parties, celebrations, afternoon teas and everything in between. One important note before you start: the tart needs to refrigerate overnight, so plan ahead if you are making this for guests.
Why This Lemon Tart Recipe Works
A lot of lemon tart recipes call for shortcrust pastry, blind baking and temperature precision that can intimidate home cooks. This recipe skips all of that. We build the base from crushed biscuits and butter, which sets firm in the fridge without any oven time. The filling is a stovetop lemon curd that we pour straight into the chilled case and let set overnight. The result looks like it came from a patisserie, and nobody needs to know how straightforward it was to put together.
- No pastry skills required. The biscuit base is press-in and foolproof.
- No blind baking. You set the base in the fridge, not the oven.
- The lemon curd filling is rich, smooth and deeply flavoured.
- You prepare everything the day before, which actually makes it ideal for entertaining.
- It serves 6 generously and scales up easily if you need to feed more.
Ingredients
For the biscuit base (serves 6)
185g Marie or Nice biscuits, processed to fine crumbs
1/2 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
90g unsalted butter, melted
Pure icing sugar, to serve
For the lemon curd filling
3 lemons (you need the zest of 1 and the juice of all 3)
4 eggs
1 cup (220g) caster sugar
125g unsalted butter, chopped into small pieces
💡 Tip: Use unwaxed lemons if you can find them, especially since you are zesting one of them. Unwaxed lemons give you a cleaner, brighter flavour in the curd. If your lemons feel waxy, scrub them well under warm water before zesting.
Equipment You Will Need
- A 24cm loose-based round flan pan, 2cm deep
- A food processor or rolling pin and zip-lock bag for crushing biscuits
- A heatproof bowl that sits over a saucepan without the base touching the water
- A medium saucepan
- A whisk and a wooden spoon
- A fine grater or microplane for zesting
- Plastic wrap
💡 Tip: The loose-based flan pan is important. It lets you lift the tart out cleanly without cracking the base. A springform cake tin works as a substitute if needed, though the depth will be slightly different.
Method
Step 1: Make the biscuit base
- Lightly grease a 2cm-deep, 24cm loose-based round flan pan and set it aside.
- Process the biscuits in a food processor until they reach fine crumbs. Alternatively, seal them in a zip-lock bag and crush with a rolling pin.
- Tip the crumbs into a bowl, add the cinnamon, nutmeg and melted butter and mix everything together until the crumbs are evenly coated and hold together when you press a bit between your fingers.
- Press the mixture firmly and evenly into the base and up the sides of the prepared pan. Use the back of a spoon or the bottom of a glass to compact it well.
- Refrigerate the base for at least 1 hour until it feels firm and set.
💡 Tip: Press the crumb mixture up the sides a little higher than the edge of the filling line. The sides will shrink back slightly as the curd sets, and having a bit of extra height keeps the filling neatly contained.
Step 2: Make the lemon curd
- Finely zest the rind of one lemon into a heatproof bowl. Juice all three lemons and measure out 2/3 cup of the juice. Set the rest aside.
- Add the eggs and caster sugar to the bowl with the lemon zest and whisk everything together until smooth and well combined.
- Pour in the 2/3 cup of lemon juice and whisk again until fully incorporated.
- Fill a medium saucepan with a few centimetres of water and bring it to a gentle simmer. Set the heatproof bowl on top of the saucepan, making sure the base of the bowl does not touch the water.
- Cook the curd over the simmering water, stirring constantly with a wooden spoon, for 20 to 25 minutes. You are looking for a thick, custard-like consistency that coats the back of the spoon. Do not let it boil, as this will scramble the eggs.
- Remove the bowl from the heat and immediately whisk in the chopped butter, a few pieces at a time, until the curd is smooth and glossy.
💡 Tip: If you see any small lumps forming in the curd while it cooks, do not panic. Strain the finished curd through a fine mesh sieve before pouring it into the tart case and it will come out perfectly smooth.
Step 3: Fill and set the tart
- Pour the warm lemon curd into the chilled biscuit case, spreading it gently to the edges with a spatula.
- Lay a sheet of plastic wrap directly on the surface of the curd to prevent a skin forming.
- Refrigerate the tart overnight, or for a minimum of 6 hours, until the curd is fully set and slices cleanly.
- When you are ready to serve, carefully remove the tart from the pan, dust generously with pure icing sugar and slice with a sharp knife warmed under hot water.
💡 Tip: Run a thin palette knife around the inside edge of the pan before attempting to release the base. This prevents the biscuit base from cracking at the sides as you push it up.
How to Serve Lemon Tart
A dusting of icing sugar is the classic finish and it suits the tart perfectly. But there are a few ways to take the presentation a step further if you are serving this at a dinner party or celebration:
- Spoon a generous dollop of thick cream or creme fraiche alongside each slice. The richness balances the sharpness of the lemon beautifully.
- Add a scattering of fresh raspberries or blueberries. The tartness of the berries plays well with the lemon curd and adds colour to the plate.
- Torch the top lightly with a kitchen blowtorch after dusting with caster sugar instead of icing sugar, which gives you a thin, crackling brulee finish.
- Garnish with thin curls of lemon zest and a few fresh mint leaves for a clean, elegant look that takes about 30 seconds.
💡 Tip: Slice the tart with a sharp knife that you run under hot water and wipe dry between each cut. This gives you clean, restaurant-quality slices rather than ragged edges.
Making Ahead and Storing the Tart
The overnight refrigeration time is not just a formality. It genuinely improves the texture of the curd, making it firmer and easier to slice. This also makes lemon tart one of the best desserts to prepare ahead when you are entertaining, because you can make it the day before and have one less thing to think about on the day itself.
Storage
- Store the tart covered in the refrigerator for up to 3 days. The biscuit base will soften slightly over time but the flavour remains excellent.
- Do not freeze a completed tart. The biscuit base absorbs moisture as it thaws and loses its texture.
- You can freeze the lemon curd separately in an airtight container for up to 1 month. Thaw it overnight in the fridge and whisk to restore smoothness before using.
Recipe Variations Worth Trying
Lime and coconut tart
Swap the lemons for limes and add 2 tablespoons of desiccated coconut to the biscuit base. The result is a tropical variation that works particularly well in summer and suits outdoor entertaining at a garden party or backyard event.
Orange and lemon tart
Replace one of the lemons with a large orange. The orange softens the sharpness of the lemon and adds a subtle warmth to the curd. This version suits a winter menu better than the straight lemon version.
Ginger biscuit base
Substitute half the Marie biscuits with ginger snap biscuits. The spice in the base adds a warmth that contrasts interestingly with the sharp lemon curd filling. This is a straightforward switch that produces a noticeably different result.
Individual lemon tarts
Press the biscuit mixture into individual tartlet tins instead of one large pan. This gives you neat, single-serve portions that work beautifully for dinner party catering or when you are including dessert as part of a grazing style spread for a larger group.
Serving Lemon Tart at Events and Larger Gatherings
This recipe scales well. Double the quantities for a crowd of 12, or make multiple tarts and refrigerate them side by side. The biscuit base and lemon curd both prepare easily in larger batches and the overnight setting time means you do the work well before guests arrive.
We often include lemon tart as part of our afternoon tea catering menus, where it slices into neat portions and sits beautifully alongside other sweets. It also pairs well with a finger food spread for events where guests are grazing rather than sitting down for a structured meal.
If you are planning an event in Melbourne and would rather leave the desserts to someone else, our event catering team handles everything from sweet platters through to full dessert courses. Get in touch and we can talk through what works best for your occasion.
Frequently Asked Questions About Making Lemon Tart
Q: Can I make lemon tart the day before?
Yes, and we actively recommend it. The tart needs at least 6 hours in the fridge to set properly, and overnight refrigeration gives you an even firmer, more sliceable result. Making it the day before also takes the dessert off your to-do list on the day of the event, which is a genuine relief when you are juggling other preparations.
Q: Can I use store-bought lemon curd instead of making my own?
You can, and it will still produce a good result. Store-bought lemon curd tends to be sweeter and less sharp than a homemade version, so the flavour profile will be different. If you use store-bought curd, taste it first and add a squeeze of fresh lemon juice if you want a brighter, more acidic flavour. Pour it straight into the chilled biscuit base and refrigerate as normal.
Q: Why did my lemon curd not set?
The most common reason is that the curd did not cook for long enough on the heat. You need to cook it for 20 to 25 minutes, stirring constantly, until it visibly thickens and coats the back of a spoon. If you pull it off the heat too early it will stay liquid in the tart. The curd also continues to firm up significantly as it chills overnight, so do not judge it by how it looks when you first pour it into the case.
Q: My lemon curd has small lumps in it. What went wrong?
Small lumps usually mean the heat was too high and the eggs started to scramble. You can often rescue a lumpy curd by straining it through a fine mesh sieve while it is still warm. Push it through with the back of a spoon and you will end up with a perfectly smooth filling. To avoid this in the first place, keep the heat under the saucepan gentle and stir constantly without stopping.
Q: Can I use a pastry case instead of a biscuit base?
Absolutely. A pre-baked shortcrust pastry case works beautifully with this lemon curd filling and gives you a more traditional French-style tart. Blind bake the pastry case until golden and completely dry before you add the curd, then let the curd set in the fridge as described. The biscuit base version in this recipe is designed for those who want a great result without dealing with pastry, but both approaches produce an excellent tart.
Q: How many people does this lemon tart serve?
The recipe as written serves 6 generously. If you cut smaller slices you can extend it to 8. For larger groups, make two tarts side by side. The quantities double cleanly and both the base and the curd scale without any adjustments needed to the method.
Q: What biscuits work best for the base?
Marie biscuits and Nice biscuits are the classic choices because they are neutral in flavour and crush to a fine, even crumb. Digestive biscuits work well too and add a slightly nuttier base flavour. Ginger snap biscuits are a popular variation that adds warmth and spice. Avoid biscuits with a strong flavour or filling as these will compete with the lemon curd rather than complement it.
Q: Can I make this lemon tart gluten free?
Yes. Swap the Marie or Nice biscuits for your preferred gluten-free plain biscuits, which are widely available in Australian supermarkets. The lemon curd filling is naturally gluten free. Everything else in the recipe stays the same and the result is just as good.
Recipe Summary Card
- Recipe: Classic Lemon Tart with Biscuit Base
- Serves: 6
- Prep time: 30 minutes
- Cook time: 25 minutes (lemon curd)
- Chill time: Overnight (minimum 6 hours)
- Difficulty: Easy to moderate
- Skill required: No pastry skills needed
- Equipment: 24cm loose-based flan pan, heatproof bowl, saucepan, whisk
Want Dessert Without the Kitchen Work?
This tart is genuinely worth making if you enjoy cooking. But if you are planning an event in Melbourne and you want the food handled from start to finish, our team at Diamond Blue Catering takes care of everything, including desserts, so you can focus on being with your guests.
Browse our dinner party catering menu, explore our morning and afternoon tea options, or take a look at our designer menus if you want something completely tailored to your event. Get in touch and we will put something great together.