Some desserts remind us that simplicity can be absolutely divine, and this Lemon Condensed Milk Fridge Slice is one of those timeless treasures. Creamy, zesty, sweet, and beautifully chilled, it’s the kind of recipe you whip up in minutes and proudly serve to guests — no oven, no stress, just pure lemon perfection. This slice has been a favorite in many homes for decades. It’s the dessert you make when the weather is warm, when you don’t feel like baking, or when you want something that tastes like sunshine on a plate. The base is buttery and crumbly thanks to crushed Marie biscuits, while the filling is silky smooth with the perfect balance of sweetness and citrus. Once it sets in the fridge, every square slices cleanly into the dreamiest lemony bars you’ve ever tasted. Whether it’s for afternoon tea, a picnic, a family gathering, or simply for snacking during the week, this no-bake lemon slice is guaranteed to impress — even though it only needs a handful of pantry staples.
🍋 Why You’ll Love This Recipe
- No baking required — just mix, chill, and enjoy.
- Only 5 core ingredients, all budget-friendly.
- Perfect texture — creamy top, crunchy bottom.
- Bright, fresh flavor from real lemon juice and zest.
- Ideal make-ahead dessert for busy days.
- Kid-friendly AND party-friendly.
📝 Ingredients
For the Base
- 1 packet (approx. 200 g) Marie biscuits, crushed
- 100 g unsalted butter, melted
For the Lemon Filling
- 1 tin (397 g) sweetened condensed milk
- ½ cup freshly squeezed lemon juice
- 1 tbsp finely grated lemon zest
Optional Topping
- Extra crushed biscuits or desiccated coconut
👩🍳 Instructions
Step 1 – Prepare the Pan
Line an 8×8 inch (20×20 cm) square pan with parchment paper, leaving extra on the sides to lift the slice out easily later.
Step 2 – Make the Biscuit Base
In a bowl, mix together the crushed Marie biscuits and melted butter until the mixture resembles wet sand.
Press it firmly into the bottom of the pan using the back of a spoon.
Refrigerate while preparing the filling.
Step 3 – Mix the Lemon Filling
In a clean bowl, whisk together:
- sweetened condensed milk
- lemon juice
- lemon zest
The acidity from the lemon will instantly thicken the mixture into a luscious, creamy filling.
Step 4 – Assemble the Slice
Pour the lemon mixture over the chilled biscuit base and smooth the top.
If you like extra crunch or flavor, sprinkle with more crushed biscuits or desiccated coconut.
Step 5 – Chill and Set
Refrigerate for at least 4 hours, or overnight for best results.
Once firm, lift out of the pan and slice into 12 neat bars.
📊 Recipe Timing
- Prep time: 15 minutes
- Chill time: 4 hours
- Total time: 4 hours 15 minutes
🔢 Calories (per slice, 1 of 12): ~220 kcal
💡 Tips for the Perfect Lemon Slice
- Use fresh lemons — bottled juice won’t give the same flavor or thickness.
- Crush biscuits finely for a firm base, or leave a few chunks for texture.
- Want a thicker filling? Add an extra tablespoon of lemon juice.
- For a firmer bar, freeze for 30 minutes before slicing.
🍋 How to Serve It
- With a cup of tea or coffee
- As a picnic dessert
- On a summer platter with fresh fruit
- At baby showers, birthdays, or afternoon gatherings
It also freezes beautifully, making it a great treat to keep on hand!
✨ Final Thoughts
This Lemon Condensed Milk Fridge Slice is the very definition of an easy, refreshing, no-bake dessert. Creamy, tangy, sweet, and perfectly chilled, it’s a recipe you will want to make again and again.