A supremely simple shortbread crust and lime curd filling make up these Sweet bars. The hardest part of this recipe is grating lime rinds, which should give you an idea of how easy it is. It makes 30 bars, so this is a great dessert for a group gathering.
Tips: It's a pain in the butt to grate 8 limes, but it's worth it. Without the grated rind, the bars themselves are a little tart, but missing something. The oils in the rind bring out the lime juice in the filling. Speaking of, juicing 8 limes (or more, if they don't yield 1/2 cup of juice), is made much easier by popping them in the microwave for 20-30 seconds before slicing and squeezing.
Tweaks: Shredded sweetened coconut is suggested as a topping, along with the lime rind. If you want to use it, try toasting it beforehand. Doing so mimics the warmth of the shortbread crust.
Excerpted from Sweet by Levi Roots (Mitchell Beazley). Copyright (c) 2013. Photographs by Chris Terry.
- For the Dough:
- 250g (9 oz) unsalted butter, softened, plus extra for greasing
- 90g (3 1/4 oz) granulated sugar
- 250g (9 oz) plain flour, plus extra for flouring
- Pinch of salt
- Icing sugar, for dusting
- For the Filling
- 6 extra-large free-range eggs, at room temperature
- 625g (1 lb 6 oz) granulated sugar
- finely grated rind of 8 unwaxed limes, plus extra for decorating
- 1/2 cup lime juice
- 125g (4 1/2 oz) plain flour
Preheat the oven to 350°F. Beat the butter and sugar together, using an electric mixer or by hand, until pale but not too fluffy. With the mixer set on a very low speed, add the flour and salt and beat gently until just combined. Turn out the dough (it may not have come together into a ball yet — don’t worry) onto a lightly floured work surface and knead into a ball. Using well-floured hands, press the dough into a greased 8 1/2 x 12 inch rectangular baking tin. Chill in the refrigerator for 30 minutes (or stick it in the freezer for about 10 minutes).
Bake for 15 - 20 minutes until pale golden, then remove from the oven but don’t turn the oven off. Leave to cool in the tin.
To make the filling, whisk together the eggs, sugar, lime rind and juice. When combined, gradually mix in the flour, whisking continuously. Pour into the cooled tin, on top of the cooled shortbread base, and bake for 30 minutes or until the filling is set. Leave to cool in the tin.
Cut into 30 small bars, dust with icing sugar and decorate with lime rind.