Key Lime Bars
Tangy lime custard on a buttery biscuit base, cut into neat bars and chilled until cold and firm.
- Time1 hr 15
- LevelEasy
- Costabout £0.38 a head
- Oven170°C (150°C fan)
Cost is worked out from Aldi and Tesco shelf prices in October 2026. Your shop and brands will differ.
Ingredients
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Method
- 1
Heat the oven to 170°C (150°C fan). Line a 20 cm square tin with baking paper.
- 2
Blitz the biscuits to fine crumbs. Stir in the melted butter and sugar and press firmly into the tin. Bake for 10 minutes.
10 min - 3
Whisk the condensed milk, yolks, lime zest and juice until thick and smooth. It thickens as the lime hits the milk.
- 4
Pour over the warm base and bake for 15 minutes until just set with a slight wobble.
15 min - 5
Cool, then chill for at least 3 hours. Cut into 12 bars and serve with a spoon of whipped cream.
Double check before you cook. Recipes can contain mistakes. Any diet labels come from the ingredients as written in this recipe and are a guide, not a guarantee. Always check every ingredient and the packet label for allergens and cross contamination, and ask your doctor or dietitian what is right for you, especially with coeliac disease, diabetes or a serious allergy. This is not medical advice.
