Lemon Tart with Italian Meringue

This lemon tart with Italian meringue is what we make at home when we want something sharp, bright and a little bit finished-looking without a lot of fuss. A thin shortcrust shell, a silky lemon curd, and a stable Italian meringue that holds its shape for days instead of weeping by evening. Here’s how we build it, step by step.

Lemon Tart with Italian Meringue

Lemon tart with Italian meringue — crisp chocolate-lined shortcrust, silky lemon curd and glossy torched meringue, finished with fresh raspberries.

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Prep Time 45 minutes mins

Cook Time 25 minutes mins

Chilling & setting 3 hours hrs

Total Time 4 hours hrs 10 minutes mins

Servings: 10 slices

Course: baking, Dessert

Cuisine: european

Ingredients Equipment Method Notes

Ingredients

  

Shortcrust paysty

• 100 g powdered sugar ¾ cup + 1 tbsp icing sugar
• 200 g unsalted butter ¾ cup + 2 tbsp cold, cubed (1¾ sticks)
• 300 g all-purpose flour 2½ cups
• 1 large egg
• 1 tsp fine salt
• 1 tsp vanilla sugar optional — or 1 tsp vanilla extract
• 1 tbsp cold water only if the dough feels dry
• 50 g dark or white chocolate melted, for sealing the baked shell

Lemon curd

• 75 g fresh lemon juice ⅓ cup, about 2 lemons
• 75 g granulated sugar 6 tbsp
• 125 g unsalted butter ½ cup + 1 tbsp, cubed
• 3 large eggs 150 g
• 75 g granulated sugar 6 tbsp
• 2,5 g gelatin ¾ tsp — powdered: bloom in 1 tbsp cold water. Sheets: use 1½ sheets (2.5 g), soaked and squeezed. See notes.

Italian meringue

• 200 g granulated sugar 1 cup
• 75 g water ⅓ cup
• 100 g egg whites ⅓ cup, from about 3 large eggs

To finish

• 125 g fresh raspberries 1 cup
• wood sorrel (oxalis) optional

Equipment

• Digital kitchen scale This recipe is built on weights — the curd and the meringue both depend on them.
• Instant-read digital thermometer Non-negotiable for the sugar syrup. You need to hit 250°F (121°C) exactly, and eyeballing it doesn't work.
• Stand mixer We use a KitchenAid Artisan daily. Italian meringue has to whip until the bowl is cold — that's a long run for a hand mixer.
• 9-inch tart pan with removable bottom Straight sides and a loose base let you unmould a thin, crisp shell without cracking it.
• Ceramic pie weights We use dried peas at home; ceramic weights do the same job and last forever.
• Fine-mesh sieve Straining the curd is the difference between good and silky.
• Rolling Pin For rolling the dough thin and even.

Method

 

Shortcrust pastry

1. Combine the powdered sugar, cold butter, flour, egg, salt and vanilla sugar. Mix only until the dough comes together — do not work it. If it feels dry, add 1–2 tbsp cold water.
2. Divide the dough in two, wrap both halves and chill at least 30 minutes. The dough is also happy overnight. You only need one half for this tart — freeze the other.
3. Roll one half out thin and line a greased tart pan. Lay parchment over the base and fill with dried peas or pie weights so the shell keeps its shape.
4. Blind bake at 350°F (180°C) for 20–25 minutes, depending on how thin you rolled it. Cool completely.
5. Brush the cold shell with melted chocolate and let it set. This is what keeps the base crisp once the lemon curd goes in.

Lemon curd

1. Bloom the gelatin in cold water.
2. Bring the lemon juice, the first 75 g sugar and the butter to a boil.
3. Whisk the eggs with the second 75 g sugar in a bowl, then whisk in a little of the hot mixture to temper.
4. Pour the egg mixture back into the pan and cook for 3 minutes, stirring, until thickened.
5. Stir in the bloomed gelatin and pass the curd through a fine sieve. Let it cool until it is just warm and still pourable — not hot, and not set.
6. Let the curd cool until it is barely warm to the touch, around 90°F (32°C), but still flowing freely off the spoon. Pour it into the chocolate-lined shell — it will settle into a smooth, glossy surface on its own. Chill until set, about 2 hours.

Italian meringue

1. Whip the egg whites at medium speed until foaming well and white. Lower speed gives smaller bubbles and a meringue that's easier to get right.
2. Cook the sugar and water to 250°F (121°C). This temperature decides the texture of the meringue.
3. Turn the mixer up. Pour the hot syrup down the side of the bowl in a thin stream while the mixer keeps running. Once all the syrup is in, keep whipping until the meringue is cold.
4. Spoon the meringue over the set tart, pulling the back of the spoon up into soft peaks as you go. Finish with raspberries and a few leaves of wood sorrel.

Notes

the 250°F (121°C) syrup is the whole recipe. Under-cooked syrup gives a loose meringue that weeps within hours; hit the number and you get a meringue that holds its shape on the tart for days.

Sheets or powder? Both set the curd equally well — the handling is what differs, and this is where most curds go wrong. Sheets are soaked in plenty of cold water, then lifted out and squeezed, so the soaking water gets discarded. Powdered gelatin is bloomed in its own measured tablespoon of cold water, and the whole swollen mass goes into the curd, water included. Weigh it rather than counting: sheet weights vary by brand (usually around 1.7 g each), so 2.5 g is the number that matters. If you’re buying powder in the US, a standard envelope is 7 g — you need about a third of one.

Pour the curd barely warm — not hot, not cold. Warm curd levels itself in the shell, so you never have to spread or pipe it. But hot curd will melt the chocolate seal you just brushed on, and cold curd has already begun to set. Aim for barely warm to the touch, still flowing off the spoon.

Brushing the cooled shell with melted chocolate is a small step with a big payoff — it waterproofs the pastry so the base stays crisp under the curd.

The pastry makes two shells. That’s how we bake it at home — two at a time. Wrap the second half raw and freeze it; it keeps for three months and makes the next tart half the work. If you want two finished tarts, simply double the curd.

Italian meringue keeps well and freezes. Make a little extra and you have the base for an ice cream or another cake later in the week.

Gelatin in a lemon curd is a professional habit: it gives clean slices instead of a curd that slumps when you cut it.

Why we brush the tart shell with chocolate

A soggy base is what ruins most lemon tarts. Curd is wet, pastry is porous, and given a few hours in the fridge the two find each other.

The fix takes two minutes: once the blind-baked shell is completely cold, brush the inside with melted chocolate and let it set. It forms a thin, invisible seal between the pastry and the curd. Dark chocolate adds a faint bitterness that works beautifully with lemon; white chocolate keeps the flavour neutral. Either way, the base is still crisp the next day.

The trick to a mirror-smooth top

Don’t pour the curd hot, and don’t wait until it’s cold. There’s a window in between: strain it, let it cool until it’s barely warm to the touch — still flowing freely off the spoon — and pour it straight into the shell. It finds its own level and sets to a glossy, perfectly flat surface. No spreading, no piping, no spatula marks.

Both ends of that window matter. Too hot and you melt the chocolate seal you just brushed into the shell. Too cold and the gelatin has already started to work, and you’ll spend ten minutes chasing a smooth surface with a spatula and losing.

Italian meringue and the 250°F rule

There are three meringues in a pastry kitchen, and Italian is the one you want on a tart. Whipping hot sugar syrup into the whites cooks them as you go, which is why it stays glossy, pipes cleanly and doesn’t collapse into a puddle of syrup overnight.

Two things matter:

• Start the whites at medium speed. Slower whipping gives smaller, tighter bubbles and a much more reliable meringue than blasting them on high.
• Cook the syrup to exactly 250°F (121°C). This is not a range to guess at. Too cool and the meringue never sets up properly; too hot and it turns stiff and grainy. Use a thermometer.

Then keep whipping until the bowl feels cold to the touch. If you stop while it’s still warm, the meringue will slump when you pipe it.

Make it your own

Raspberries are our default — the tartness lines up with the lemon rather than fighting it. Blueberries, redcurrants or thin slices of strawberry all work.

For the herbs we use wood sorrel (oxalis). It has a fine acidity that matches the curd, and the color sits well against the red berries. It’s hard to find in most shops, so lemon thyme or small mint leaves are a good stand-in.

This filling also makes excellent individual tartlets: roll the dough to about 2 mm, line small tartlet moulds, blind bake at 320°F (160°C) for 15 minutes, and pipe the cold curd in with a piping bag and a ⅜-inch (9 mm) round tip. Glazed with a neutral gel instead of meringue, they look like something out of a pastry shop window.