This dessert is incredibly easy to make yet feels sophisticated and impressive. The balance of sweet cream and tart lime creates a perfectly refreshing flavor. It’s a great make-ahead option for gatherings and requires minimal effort while delivering maximum taste. Plus, the smooth texture and zesty finish make it ideal for warm weather.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
heavy cream granulated sugar key lime juice lime zest graham cracker crumbs butter
Directions
In a saucepan over medium heat, combine the heavy cream and sugar. Stir continuously until the sugar dissolves and the mixture just begins to simmer.
Remove from heat and let it cool slightly, then stir in the key lime juice and lime zest. The mixture will begin to thicken naturally.
Pour the mixture into serving glasses or ramekins.
In a small bowl, mix graham cracker crumbs with melted butter until combined. Spoon the crumb mixture over the top or layer it at the bottom of the glasses for a crust-like effect.
Refrigerate for at least 3–4 hours, or until set.
Serve chilled, optionally garnished with extra lime zest or whipped cream.
Servings and timing
This recipe serves 4 people. Preparation time is about 10 minutes, with a chilling time of 3–4 hours, making the total time approximately 4 hours.
Variations
You can use regular lime juice if key limes are not available. Add a touch of vanilla extract for extra depth of flavor. Top with fresh berries for a fruity twist or layer with crushed cookies for added texture. For a lighter version, use half-and-half instead of heavy cream, though the texture may be softer.
Storage/Reheating
Store the possets covered in the refrigerator for up to 3 days. They are best served cold and do not require reheating. Avoid freezing, as it can affect the smooth texture.
FAQs
What is a posset?
A posset is a traditional creamy dessert made by curdling sweetened cream with an acidic ingredient like citrus juice.
Do I need gelatin to set this dessert?
No, the acid in the lime juice naturally thickens the cream.
Can I use bottled lime juice?
Yes, but fresh lime juice gives the best flavor.
How do I know when it’s set?
It should be firm around the edges and slightly soft in the center.
Can I make this ahead of time?
Yes, it’s perfect for preparing a day in advance.
Can I use lemon instead of lime?
Yes, lemon works well for a similar dessert.
Why didn’t my posset set properly?
The cream may not have been hot enough or the ratio of acid to cream may be off.
Can I make it dairy-free?
This recipe relies on cream, so dairy-free alternatives may not set the same way.
What can I use instead of graham crackers?
Crushed digestive biscuits or cookies work well.
Is this dessert very sweet?
It has a balanced sweetness with a tangy citrus finish.
Conclusion
Key Lime Pie Possets are a simple yet elegant dessert that delivers bright citrus flavor and a luxuriously smooth texture. With minimal ingredients and no baking required, they’re a perfect choice for an easy, refreshing treat that’s sure to impress.
These Key Lime Pie Possets are a creamy, no-bake dessert bursting with bright citrus flavor. Made with just a few simple ingredients, this easy posset recipe delivers a silky texture with the perfect balance of sweet and tangy—ideal for warm weather treats or elegant entertaining.
Ingredients
2 cups heavy cream
3/4 cup granulated sugar
1/3 cup key lime juice (fresh preferred)
1 tsp lime zest
1 cup graham cracker crumbs
3 tbsp butter, melted
Instructions
In a saucepan over medium heat, combine heavy cream and sugar. Stir until sugar dissolves and the mixture just begins to simmer.
Remove from heat and let cool slightly for 2–3 minutes.
Stir in key lime juice and lime zest. The mixture will naturally begin to thicken.
Pour into serving glasses or ramekins.
In a small bowl, mix graham cracker crumbs with melted butter until evenly combined.
Spoon the crumb mixture over the top or layer it at the bottom for a crust effect.
Refrigerate for at least 3–4 hours, or until set.
Serve chilled, optionally garnished with extra lime zest or whipped cream
Notes
Fresh lime juice provides the best flavor and helps achieve proper setting.Do not boil the cream—just bring it to a gentle simmer.For a twist, add vanilla extract or top with fresh berries.
