Limes Care Home is a dessert inspired by the classic British treat, combining a buttery shortbread base with a tangy, smooth lime curd topping. It’s a simple, no-fuss bake that uses fresh lime juice and zest to deliver a bright, citrusy flavor that balances the richness of the butter. This recipe is perfect for using up a bag of limes and is sure to become a favorite for its sweet-tart contrast and crumbly texture.
Ingredients
- For the shortbread base: 1 ½ cups (188 g) all-purpose flour
- ¼ cup (50 g) granulated sugar
- ½ cup (1 stick / 113 g) unsalted butter, cold and cut into small cubes
- Pinch of salt
- For the lime curd filling: 4 large eggs
- 1 cup (200 g) granulated sugar
- ½ cup (120 ml) fresh lime juice (about 4-5 limes)
- 1 tablespoon lime zest (from about 2 limes)
- ½ cup (1 stick / 113 g) unsalted butter, melted and slightly cooled
- Optional: powdered sugar for dusting
Instructions
- Preheat your oven to 350°F (175°C). Line an 8×8-inch (20×20 cm) baking pan with parchment paper, leaving some overhang on two sides for easy lifting.
- Make the shortbread base: In a medium bowl, whisk together the flour, sugar, and salt. Add the cold butter cubes and use a pastry blender or your fingertips to work the butter into the flour until the mixture resembles coarse crumbs with some pea-sized butter pieces.
- Press the mixture evenly into the bottom of the prepared pan. Use the bottom of a flat measuring cup to compact it firmly.
- Bake the base for 15 minutes, until lightly golden around the edges. Remove from the oven and let it cool slightly on a wire rack while you make the curd. Keep the oven on.
- Make the lime curd: In a medium bowl, whisk the eggs and sugar together until smooth. Add the lime juice, lime zest, and melted butter, and whisk until fully combined.
- Pour the curd mixture over the slightly cooled shortbread base.
- Return the pan to the oven and bake for 25-30 minutes, until the curd is set around the edges but still slightly jiggly in the center. The internal temperature of the curd should reach 160°F (71°C) as per USDA FSIS safe minimum for egg dishes.
- Remove from the oven and let cool completely on a wire rack. Then refrigerate for at least 2 hours to fully set before slicing.
- Once chilled, use the parchment overhang to lift the bars out of the pan. Place on a cutting board and slice into 16 squares. Dust with powdered sugar just before serving, if desired.
Tips
- Substitutions: If you don’t have fresh limes, you can use bottled lime juice, but the flavor will be less bright. For a different citrus twist, substitute half the lime juice with lemon juice.
- Storage: These bars are best stored in the refrigerator, covered, for up to 4 days. They can also be frozen for up to 2 months.
- Common mistake: Don’t overbake the curd, or it will become rubbery. It should be set at the edges but have a slight wobble in the center when you take it out of the oven.
- Zesting tip: Zest the limes before juicing them, as it’s much easier to zest a whole fruit. Use a microplane or fine grater, being careful not to grate the bitter white pith.
Serving Suggestions
Serve these lime bars chilled or at room temperature. They are excellent on their own, but you can also serve them with a dollop of whipped cream or a scoop of vanilla ice cream. For a more elegant presentation, garnish each bar with a thin lime slice or a small sprig of mint.
Variations
- Coconut-Lime Bars: Add ½ cup (40 g) unsweetened shredded coconut to the shortbread base for a tropical twist.
- Ginger-Lime Bars: Add 1 teaspoon of finely grated fresh ginger to the curd mixture for a spicy kick.
- Meringue-Topped Lime Bars: After baking the curd, top with a simple meringue (whipped egg whites and sugar) and broil for 1-2 minutes until golden brown. This adds a delightful texture.
Storage and Reheating
Store the bars in an airtight container in the refrigerator for up to 4 days. They are best served cold or at room temperature. If you prefer them warm, you can reheat individual bars in the microwave for 10-15 seconds, but this may soften the shortbread. For longer storage, freeze the bars in a single layer in a freezer-safe container for up to 2 months. Thaw in the refrigerator overnight before serving.
Frequently Asked Questions
Can I use sweetened condensed milk instead of eggs? Yes, you can make a simpler version using sweetened condensed milk, lime juice, and egg yolks, but the texture will be denser and sweeter. This recipe uses whole eggs for a more traditional curd texture.
Why is my curd not setting? This could be due to underbaking or not letting it chill long enough. Make sure the curd reaches 160°F (71°C) and is set at the edges. Also, refrigerate for at least 2 hours before slicing.
Can I make this in a 9×13-inch pan? Yes, you can double the recipe and use a 9×13-inch pan. The baking time may need to be increased by a few minutes, so keep an eye on it.
How do I get clean slices? Use a sharp knife and wipe it clean between cuts. For the cleanest slices, chill the bars thoroughly and cut them while they are still cold.
Can I use lime juice from a bottle? Yes, in a pinch, but fresh lime juice gives a much better flavor. If using bottled, look for one without added sugar.
Is it necessary to refrigerate these bars? Yes, because the curd contains eggs. Refrigeration keeps them safe to eat and helps them set properly.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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