Mary Berry Lemon Posset Recipe

Mary Berry Lemon Posset Recipe
Yields: 1 Serving Difficulty: Easy Prep Time: 10 Mins Cook Time: 15 Mins Total Time: 25 Mins

Mary Berry Lemon Posset is a delightful and refreshing dessert, characterized by its smooth, creamy texture and the vibrant, tangy flavor of lemon. It’s a perfect choice for a light dessert at gatherings, family dinners, or as an elegant finish to a sophisticated meal.

In this article, I’ll guide you through the process of creating Mary Berry’s Lemon Posset, complete with practical tips to ensure your dessert turns out perfectly every time.

What is Mary Berry Lemon Posset?

Mary Berry lemon posset is a classic British dessert that is made with only three ingredients: cream, sugar, and lemon juice. The lemon juice curdles the cream and creates a smooth and creamy custard that is set in the fridge. It is a simple and elegant dessert that is perfect for any occasion.

This recipe comfortably serves 4-6 people and is surprisingly easy to make, requiring only about 20 minutes of preparation time plus chilling.

Other Popular Recipes

Why You Love this Recipe

  • Ease of Preparation: Requiring only 15 minutes of cooking time, this recipe is both quick and easy, making it perfect for busy days.
  • Refreshing Flavor: The zestiness of lemon beautifully balances the cream’s richness, offering a refreshing and invigorating taste.
  • Adaptable to Taste: This posset serves as a versatile base for various toppings and fruits, and you can even experiment with different citrus juices for unique flavor profiles.

Ingredients Needed to Make Mary Berry Lemon Posset

To make Mary Berry Lemon Posset, you only need three ingredients:

  • 600 ml (2 1/2 cups) of double cream (heavy cream)
  • 150 g (3/4 cup) of caster sugar (superfine sugar)
  • 2 large lemons, juiced and zested

Instructions to Make Mary Berry Lemon Posset

Making lemon posset is straightforward. Here are the steps you need to follow:

Step 1: Boil the cream and sugar

In a medium saucepan over medium-high heat, bring the cream and sugar to a boil, stirring occasionally to dissolve the sugar.

Step 2: Simmer the mixture

Once the mixture is boiling, lower the heat and simmer for 3 minutes, stirring frequently. Be careful not to let the cream boil over or burn.

Step 3: Add the lemon juice and zest

Remove the pan from the heat and stir in the lemon juice and zest. The cream will thicken slightly as the lemon juice curdles it.

Step 4: Pour into glasses or ramekins

Pour the mixture into six small glasses or ramekins, leaving some space at the top for the toppings. Let them cool slightly, then cover with plastic wrap and refrigerate for at least 4 hours or overnight, until set.

Step 5: Serve with toppings

To serve, top the lemon possets with your choice of fresh berries, whipped cream, or shortbread biscuits. Enjoy!

Mary Berry Lemon Posset

What Do I Serve With Mary Berry Lemon Posset?

You can serve Mary Berry lemon posset with any toppings and fruits that you like. Some of the most popular options are:

  • Fresh berries, such as strawberries, raspberries, blueberries, or blackberries
  • Whipped cream, for extra creaminess and sweetness
  • Shortbread biscuits, for a crunchy and buttery contrast
  • Mint leaves, for a fresh and aromatic garnish

Mary Berry Lemon Posset Recipe

Pro Tips to Make Perfect Mary Berry Lemon Posset

  • Choice of Lemon: Always opt for fresh lemon juice and zest. The freshness contributes significantly to both the flavor and the setting process. Bottled lemon juice might not offer the same acidity and could contain preservatives that alter the taste.
  • Cream Selection: Use double cream or heavy cream with a minimum of 35% fat content. This ensures that the posset sets correctly and offers the right texture. Lower-fat creams might not achieve the same consistency.
  • Cooking Time and Technique: When simmering the cream and sugar mixture, aim for exactly 3 minutes. Overcooking can lead to a too-thick or grainy texture. The mixture should coat the back of a spoon nicely.
  • Mixing Method: Be gentle when incorporating the lemon juice and zest into the cream. Overmixing can introduce excess air bubbles, affecting the smooth, silky texture that is characteristic of a perfect posset.
  • Chilling the Dessert: It is crucial to chill the lemon possets for at least 4 hours, or preferably overnight, for them to set properly. Avoid freezing, as it can compromise both texture and flavor.

Variations of Mary Berry Lemon Posset

Experiment with these citrusy twists to the classic lemon posset for a refreshing change:

  • Lime Posset: Replace lemon with lime for a sharper, tangier flavor.
  • Orange Posset: Use orange juice and zest for a sweeter, fruitier dessert.
  • Grapefruit Posset: Grapefruit offers a unique, slightly bitter flavor for a refreshing variation.
  • Lemon and Lime Fusion: Combine lemon and lime for a delightful mix of flavors.
  • Lemon and Ginger Twist: Add a hint of ginger for a warming, spicy note alongside the lemon.

These variations can be easily achieved by substituting the lemon juice and zest with your chosen citrus and adjusting the sugar to taste.

How do I store Mary Berry Lemon Posset?

Mary Berry’s lemon posset can be stored in the refrigerator for up to two days, maintaining its freshness and flavor.

Here’s how to store it properly:

  • Protecting from External Flavors: Cover the glasses or ramekins with plastic wrap or aluminum foil. This step is crucial to prevent the posset from drying out and to keep it from absorbing any odors from other foods in the fridge.
  • Stability in Storage: Place the covered glasses or ramekins in a shallow container or tray. This helps in preventing any accidental tipping over or spills inside the fridge.
  • Identification for Convenience: Label each container with the date and name of the dessert. This practice helps in managing your fridge efficiently, avoiding any confusion or waste.

How do I reheat Mary Berry Lemon Posset?

While Mary Berry’s lemon posset is traditionally enjoyed chilled, you might prefer it slightly warm in certain instances.

Here are the steps to reheat it safely:

  • Preparing for Reheating: Begin by removing any toppings or fruits from the lemon possets, as they may not reheat well or could lose their freshness.
  • Microwave Method: If using a microwave, gently reheat the possets in short intervals of 10 to 15 seconds, stirring in between each interval. It’s important to avoid overheating, as this can cause the posset to melt or curdle.
  • Oven Water Bath Method: As an alternative, you can place the glasses or ramekins in a baking dish filled with hot water. Then, heat them in a preheated oven at 150°C (300°F) for about 10 to 15 minutes. This method should be used cautiously to prevent the posset from drying out or cracking.
  • Final Touches: Once the possets are gently warmed to your preference, re-add the toppings and fruits for a delightful dessert experience.

Nutrition value per serving (based on 6 servings):

  • Calories: 443
  • Total fat: 32.9 g
  • Saturated fat: 20.2 g
  • Sodium: 72 mg
  • Total carbohydrate: 34.7 g
  • Dietary fiber: 1.9 g
  • Sugars: 16.8 g
  • Protein: 4.5 g


What is Lemon Posset?

Lemon posset is a classic British dessert, evolving from a medieval curative drink to a creamy custard made from cream, lemon juice, and sugar. The lemon juice sets the cream into a smooth custard, providing a refreshing balance to its richness. Typically served chilled with toppings like fresh berries or whipped cream, it’s an elegant yet easy-to-make treat.

Can I Use Bottled Lemon Juice Instead of Fresh Lemons for the Lemon Posset?

While fresh lemons are recommended for their natural acidity and flavor, you can use bottled lemon juice in a pinch. However, be aware that bottled juice may not provide the same fresh taste and could contain preservatives that alter the flavor of the posset.

What Are Some Alternative Toppings I Can Use for Lemon Posset?

Apart from the traditional berries and whipped cream, you can try a variety of toppings like toasted nuts for crunch, a sprinkle of cinnamon or nutmeg for warmth, or even a drizzle of honey for added sweetness. Citrus zest or edible flowers can also add a decorative and flavorful touch.

Is It Possible to Make Lemon Posset with a Lower Fat Content?

While heavy or double cream is recommended for the right texture and flavor, you can experiment with lighter creams. However, be aware that this might result in a less creamy texture, and the posset may not set as firmly. It’s a trade-off between richness and calorie content.

Final Words

Lemon posset is a delicious and easy dessert that you can make with just three ingredients. It’s smooth, creamy, and refreshing, and it goes well with any toppings you like. Mary Berry’s recipe is one of the best ways to make it, as it’s simple, reliable, and flavorful. Try it today and see for yourself why it’s one of her favorite desserts. You won’t regret it!

More By British Recipes Book

Leave a Reply