Name: Strawberry, Lime & Mint Charlotte
Prep time: 1 h
Cook time: 30 min
Total time: 7 h 30 min
Cuisine: French
Ingredients: 2 egg yolks; 50 g granulated sugar; 20 g cornstarch; 10 g all-purpose flour; 250 mL whole milk; 10 g unsalted butter; 400 mL heavy cream (30% fat), chilled; Zest of 1 organic lime; 5 eggs, separated; 150 g granulated sugar; 75 g all-purpose flour; 75 g cornstarch; Powdered sugar, for dusting; 400 g fresh strawberries; 8 large fresh mint leaves, finely chopped; Juice of ½ lime; 10 g granulated sugar; Extra strawberries, sliced, for decoration; Fresh mint leaves, for garnish

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This Strawberry, Lime & Mint Charlotte is a light and elegant French-inspired dessert that I love making when fresh strawberries are at their best. I layer homemade sponge biscuits with a smooth lime diplomat cream and juicy strawberries flavored with fresh mint. The combination is creamy, fruity, citrusy, and refreshing, making this charlotte especially lovely for spring and summer celebrations.

Ingredients

(Tip: You'll find the full list of ingredients and measurements in the recipe card below.)

For the Diplomat Cream:

2 egg yolks

50 g granulated sugar

20 g cornstarch

10 g all-purpose flour

250 mL whole milk

10 g unsalted butter

400 mL heavy cream (30% fat), chilled

Zest of 1 organic lime

For the Sponge Biscuits:

5 eggs, separated

150 g granulated sugar

75 g all-purpose flour

75 g cornstarch

Powdered sugar, for dusting

For the Filling:

400 g fresh strawberries

8 large fresh mint leaves, finely chopped

Juice of ½ lime

10 g granulated sugar

Extra strawberries, sliced, for decoration

Fresh mint leaves, for garnish

Equipment:

1 cake ring (18 cm)

Directions

Prepare the Diplomat Cream:

I start by whisking the egg yolks and sugar together until the mixture is smooth. I whisk in the cornstarch and flour until everything is evenly incorporated.

In a saucepan, I heat the milk until it is steaming but not vigorously boiling. I gradually pour the hot milk into the egg mixture while whisking constantly. I then return everything to the saucepan and cook it over low heat, stirring continuously, until the pastry cream becomes thick.

I remove the cream from the heat, stir in the butter, and cover the surface directly with plastic wrap. I chill it in the freezer for about 10 minutes so it cools quickly.

Once the pastry cream has cooled, I whip the chilled heavy cream until stiff peaks form. I gently fold the whipped cream into the pastry cream, taking care not to knock out too much air. Finally, I fold in the lime zest, transfer the diplomat cream to a piping bag, and refrigerate it until I am ready to assemble the charlotte.

Make the Sponge Biscuits:

I preheat the oven to 200°C (400°F) and line my baking trays with parchment paper.

I beat the egg yolks with 120 g of the granulated sugar until the mixture becomes pale and creamy. In another clean bowl, I whip the egg whites while gradually adding the remaining 30 g of sugar. I continue whipping until stiff peaks form.

I gently fold the whipped egg whites into the yolk mixture. Next, I sift in the flour and cornstarch and fold everything together just until combined.

I transfer the batter to a piping bag fitted with a plain tip. I pipe two strips of ladyfinger-style biscuits for the sides of the charlotte and two 15 cm sponge rounds for the interior layers.

I generously dust the piped batter with powdered sugar, wait about 5 minutes, and dust it again. I bake the biscuits for approximately 15 minutes, or until lightly golden. I transfer them to a wire rack and allow them to cool completely.

Prepare the Strawberry Filling:

I dice 250 g of the strawberries and place them in a bowl. I add the lime juice, finely chopped mint, and 10 g of sugar, then gently toss everything together.

I let the strawberries rest while I prepare the other components. Before assembly, I drain the strawberries and reserve their flavorful juices for brushing the sponge.

Assemble the Charlotte:

I place the 18 cm cake ring on my serving plate. I line the inside edge with the ladyfinger biscuits, keeping the rounded sides facing outward.

I place one sponge round at the bottom and lightly brush it with the reserved strawberry juice. I pipe a generous layer of lime diplomat cream over the sponge and scatter half of the strawberry mixture over the cream.

I position the second sponge round on top and repeat with another layer of diplomat cream and the remaining strawberry filling. I finish the top with a final layer of cream.

Chill and Decorate:

I decorate the top with sliced fresh strawberries and transfer the charlotte to the refrigerator. I chill it for at least 6 hours, although I prefer leaving it overnight when possible because this gives the dessert plenty of time to set.

Just before serving, I carefully remove the cake ring and finish the charlotte with fresh mint leaves.

Servings and Timing

Prep Time: 1 hour

Cooking Time: 30 minutes

Total Active Time: 1 hour 30 minutes

Chilling Time: At least 6 hours or overnight

Servings: 2 servings

Calories: Approximately 520 kcal per serving

I keep in mind that the chilling time is separate from the listed active preparation and cooking time, so I plan this dessert well in advance of serving.

Variations

Mixed Berry Charlotte:

I sometimes replace part of the strawberries with fresh raspberries or blueberries. I keep the total quantity of fruit approximately the same so the filling remains balanced.

Lemon Charlotte:

For a slightly different citrus flavor, I replace the lime zest and juice with fresh lemon. I find that lemon creates a more traditional citrus-and-berry combination while still keeping the dessert fresh.

Raspberry and Lime Charlotte:

I can replace the strawberries with raspberries for a more tart berry flavor. Because raspberries are delicate, I fold and layer them gently rather than heavily macerating them.

Vanilla Diplomat Cream:

When I want the strawberries to be the dominant flavor, I leave out the lime zest and flavor the diplomat cream with vanilla instead.

Individual Charlottes:

Instead of assembling one large charlotte, I can use small pastry rings to create individual desserts. I adjust the sponge pieces to fit the smaller molds and assemble the layers in the same order.

Storage/Reheating

I store the assembled charlotte in the refrigerator, preferably covered or placed in a cake container so it does not absorb other refrigerator odors. I find it is at its best within 1–2 days because the strawberries are freshest and the sponge still has a pleasant texture.

Because this is a chilled dessert filled with diplomat cream and fresh fruit, I keep it refrigerated until shortly before serving. I do not leave it sitting at room temperature for extended periods.

I do not reheat this charlotte. I serve it chilled directly from the refrigerator. If it has been stored in a particularly cold part of my refrigerator, I may let it sit for a few minutes before slicing.

I also prefer not to freeze the fully assembled charlotte because freezing and thawing can affect the texture of both the fresh strawberries and the cream.

FAQs

Can I Make Strawberry, Lime & Mint Charlotte Ahead of Time?

Yes. In fact, I prefer preparing it the day before serving. The charlotte needs at least 6 hours in the refrigerator to set properly, and an overnight chill makes planning much easier.

Can I Use Store-Bought Ladyfingers?

Yes. When I want to save time, I can replace the homemade sponge biscuits around the sides with store-bought ladyfingers. I still make sure they fit snugly inside my cake ring so the finished charlotte holds its shape.

Why Is My Diplomat Cream Too Runny?

I usually check that the pastry cream was cooked until properly thickened and completely cooled before I folded in the whipped cream. I also make sure the heavy cream is very cold and whipped to stiff peaks. Warm pastry cream can soften the whipped cream and create a loose filling.

How Long Does the Charlotte Need to Chill?

I refrigerate the assembled charlotte for at least 6 hours. When my schedule allows, I leave it overnight. This gives the cream enough time to firm up and helps the layers hold together when I remove the cake ring and slice the dessert.

Can I Make This Charlotte Without Mint?

Absolutely. I can simply omit the mint if I prefer a straightforward strawberry-and-lime flavor. I can also replace it with a small amount of fresh basil for a different herbal note that pairs nicely with strawberries.

Conclusion

This Strawberry, Lime & Mint Charlotte combines several flavors and textures I love in a warm-weather dessert: delicate sponge biscuits, silky diplomat cream, juicy strawberries, aromatic mint, and bright lime. Despite its elegant appearance, I can prepare each component separately and assemble everything in simple layers.

I especially like making this charlotte ahead of time and allowing it to chill overnight. Once I add the fresh strawberry and mint decoration, I have a beautiful French-inspired centerpiece that feels light, fresh, and celebratory.