This Hairy Bikers Key Lime Pie Recipe is a creamy and zesty dessert, which includes sweetened condensed milk and fresh lime juice. It’s a classic, foolproof recipe, ready in about 4 hours plus chilling time.
Jump to RecipeHairy Bikers Key Lime Pie Recipe Ingredients
For the Biscuit Base:
- 250g digestive biscuits
- 125g unsalted butter, melted
For the Filling:
- 1 x 397g can sweetened condensed milk
- 3 large egg yolks
- Zest and juice of 4 large limes (about 150ml juice)
For the Topping:
- 300ml double cream
- 1 tbsp icing sugar
- 1 lime, for zesting or slicing to decorate

How To Make Hairy Bikers Key Lime Pie Recipe
- Crush the biscuits: Place digestive biscuits in a food bag and crush with a rolling pin or pulse in a food processor to fine crumbs.
- Form the base: Mix crumbs with melted butter until they resemble wet sand. Press into a 23cm loose-bottomed tart tin, covering the base and sides evenly. Chill for at least 30 minutes.
- Preheat the oven: Set your oven to 170°C (150°C Fan / Gas 3).
- Mix the filling: Whisk together condensed milk and egg yolks. Add lime zest and slowly whisk in the juice until smooth and slightly thickened.
- Bake the pie: Pour the filling into the chilled crust. Bake for 15-20 minutes until just set with a slight wobble in the centre.
- Cool and chill: Cool completely at room temperature, then refrigerate for at least 3 hours or overnight until firm.
- Whip the cream: Whip double cream and icing sugar until soft peaks form. Avoid over-whipping.
- Decorate and serve: Spread whipped cream over the chilled pie or serve alongside. Garnish with lime zest or slices.

Recipe Tips
- Can I use bottled lime juice? Fresh lime juice is best for flavor, but bottled can work in a pinch.
- How do I know when it’s set? The centre should have a slight wobble but not be liquid.
- Can I make this ahead? Yes, it’s ideal for making a day in advance and chilling overnight.
- How to prevent over-whipping cream: Stop as soon as soft peaks form and don’t leave it unattended.
- What if I don’t have a loose-bottomed tin? Line a regular tin with parchment for easy removal.
What To Serve With Key Lime Pie
This refreshing dessert is great on its own or with simple extras:
- Fresh raspberries or strawberries
- Light mint syrup drizzle
- Graham crackers on the side
- Extra whipped cream
- Vanilla ice cream

How To Store Key Lime Pie
Refrigerate: Cover and refrigerate for up to 3 days. Best enjoyed chilled.
Freeze: Can be frozen (without the cream topping) for up to 1 month. Thaw in the fridge overnight.
Key Lime Pie Nutrition Facts
- Calories: 450 kcal
- Total Fat: 28g
- Saturated Fat: 16g
- Cholesterol: 130mg
- Sodium: 200mg
- Total Carbohydrate: 45g
- Dietary Fiber: 1g
- Sugars: 35g
- Protein: 7g
Nutrition information is estimated and may vary based on ingredients and cooking methods used.
FAQs
Can I use graham crackers instead of digestive biscuits?
Yes, graham crackers are a great alternative and commonly used in U.S. recipes.
Is this an authentic Key Lime Pie?
This is a British twist on the American classic using digestives and double cream.
Can I use lime extract instead of zest?
Zest adds natural oils and fresh flavor, but a few drops of extract can work in a pinch.
Why is my filling not thickening?
Make sure to whisk well and bake until just set; chilling helps it firm up.
Can I skip the cream topping?
Yes, but it balances the tartness of the lime filling nicely.
Try More Recipes:
- Hairy Bikers Halloumi Tray Bake Recipe
- Hairy Bikers Cassoulet Recipe
- Hairy Bikers Black Forest Cake Recipe
Hairy Bikers Key Lime Pie Recipe
Course: DessertCuisine: British8
servings10
minutes20
minutes450
kcalA smooth and tangy lime pie with a buttery biscuit crust and whipped cream topping—simple, refreshing, and perfect for warm-weather desserts.
Ingredients
250g digestive biscuits
125g melted butter
1 x 397g can condensed milk
3 egg yolks
Zest and juice of 4 limes
300ml double cream
1 tbsp icing sugar
1 lime, for garnish
Directions
- Crush biscuits and mix with melted butter.
- Press into a 23cm tart tin and chill.
- Preheat oven to 170°C (150°C Fan).
- Whisk condensed milk and yolks, add lime zest and juice.
- Pour into crust and bake 15-20 minutes.
- Cool completely, then chill for 3+ hours.
- Whip cream with icing sugar to soft peaks.
- Top pie with cream and garnish with lime.
