Mary Berry Key Lime Cheesecake

This iconic dessert brings a bright, citrus twist to any dinner table. The original no-bake version first appeared in the 2013 Cookery Course and is still loved by home bakers across the United Kingdom.

It is a straightforward recipe that yields a professional finish with minimal fuss. The biscuit base firms up quickly and a silky filling combines creamy textures with zesty citrus notes for a truly refreshing slice.

Whether you are hosting friends or baking for family, this guide will walk you through each step. For detailed measurements and tips on chilling and serving, see the full no-bake cheesecake recipe.

Key Takeaways

• The dessert offers a simple, reliable method for a showstopping finish.
• It combines a buttery biscuit base with a smooth, citrusy filling.
• Chill for at least six hours, preferably overnight, for clean slices.
• Suitable equipment includes a 20cm loose-bottomed tin and an electric mixer.
• Store in the fridge for up to three days or freeze for one month.

Why You Will Love This Mary Berry Key Lime Cheesecake

Home cooks praise this recipe for delivering impressive flavour with minimal effort. It dates back to the 2013 Cookery Course and has become a staple in many British kitchens.

The method is simple, so even first-timers can produce a smooth, professional-looking cake. The biscuit base firms quickly and the filling sets to a silky texture with a bright citrus tang.

This dessert makes a fresh alternative to a traditional birthday cake. Guests often prefer a lighter finish, and the make-ahead nature means you can prepare the dish in advance for relaxed entertaining.

Mary makes easy work of tricky techniques, and this recipe is one of the most popular in her collection. Our round-up of recipes includes this classic so you can enjoy reliable results at home.

• Simple steps that suit beginners and pros alike.
• Prep ahead for stress-free hosting.
• Consistently excellent slices that rival patisserie standards.

Essential Ingredients for the Perfect Filling

Perfecting the filling starts with the right dairy and the brightest citrus notes.

Use full-fat dairy throughout to guarantee a stable, silky set. The recipe requires a 397g can of full-fat condensed milk and 175g of full-fat cream cheese at room temperature. These exact weights matter for structure and texture.

The Importance of Full-Fat Dairy

Do not substitute low-fat versions. Low-fat cheese or condensed milk will thin the filling and prevent a proper set. When you measure cream and other dairy, ensure items are at room temperature. This helps you achieve a lump-free, smooth mix.

Selecting the Best Limes

Choose firm, glossy limes with heavy feel for their size. You will need the zest and juice of 2 large lemons and 1.5 limes to give the signature zing.

Using a large bowl mix the cream cheese, condensed milk, zest and juice thoroughly. The acid in the juice reacts with the full-fat condensed milk to thicken the filling and lift flavour.

• Tip: Warm cream cheese softens more evenly when left at room temperature.
• Tip: Use a single large bowl to bowl mix ingredients for consistent texture.

Preparing the Biscuit Base

Start the base by crushing the biscuits until they form fine, even crumbs. Place 10 digestive biscuits in a large plastic bag and bash them with a rolling pin. The rolling pin technique removes large chunks and gives consistent crumbs.

Mix the crumbs with 50g melted butter and 25g demerara sugar in a bowl. Combine until the mixture looks moist and holds together when pressed.

Achieving the Perfect Crumb Texture

Tip: use a 20cm (8in) tin for the best fit. Spoon the crumb mix into the tin and tin press firmly to create an even layer.

• Use the rolling pin to make fine crumbs for a compact biscuit base.
• Tin press firmly so the base forms a stable foundation for the filling.
• After pressing, place the tin in the fridge for 30 minutes to let the butter set.

For a ready-to-use guide on similar recipes, see the full mary berry key lime pie.

Mastering the Creamy Lime Mixture

A silky, citrus-scented filling needs gentle handling to reach the ideal texture. Start by gathering measured ingredients and a large bowl so you can work cleanly and confidently.

Using an Electric Mixer

Using electric mixers on a low setting, combine the cream cheese and condensed milk in a large bowl until smooth. Start slowly to avoid splashing, then increase speed briefly to fold in air and create a light texture.

Achieving the Right Consistency

Measure cream and milk carefully. Whisk in the lime juice and zest and keep mixing until the mixture thickens to a creamy consistency.

• The acid in the condensed milk and juice causes the filling to set without gelatine.
• Use a spatula to bowl mix the edges so there are no lumps.

Chilling for the Perfect Set

After pouring the filling over the biscuit base, level the top and place the tin in the fridge for a minimum of 2 hours. Overnight chilling gives the firmest set and cleaner slices.

“Chill for at least two hours, but overnight is best for a stable, sliceable finish.”

Expert Tips for Success

Follow practical steps and you can avoid common errors that spoil texture and flavour.

Make-ahead: You can prepare this dessert up to 24 hours ahead. Chill in the fridge and remove 15 minutes before serving to soften slightly.

Whipping cream: Use an electric mixer and stop when the cream just holds a loose shape. This prevents over-whipping and keeps the filling airy.

Full-fat matters: Using full-fat cream, milk and condensed milk gives a stable set and richer taste. Low-fat swaps thin the filling and reduce structure.

If you lack cooking rings, try clean empty baked bean cans for rustic individual portions. For the biscuit base, the rolling-pin method gives fine, even crumbs every time.

“Mary makes easy work of technique with clear steps that help home cooks succeed.”

• Follow the recipe ratios and chilling times for consistent results.
• Small steps, like gentle folding and proper chilling, deliver patisserie-style slices at home.

Conclusion

Finish with confidence: this vibrant dessert rewards simple, steady steps for a flawless slice. The mary berry name reflects a trusted approach that makes baking accessible.

Start with crisp biscuits, good butter and the right measure of sugar. Use full‑fat cream and give the base time to set in the fridge so the filling firms cleanly.

This recipe produces a showstopping cake that looks and tastes professional. Mary makes easy tips — gentle folding, steady chilling in a tin and sensible patience — help both novice and seasoned cooks succeed.

Enjoy this classic dessert at gatherings or as a celebration cake. Try other recipes from the collection for more simple, impressive dishes.