Old Fashioned Lemon Slice Recipe

If you are on the lookout for a delightfully nostalgic treat, this Old Fashioned Lemon Slice Recipe will quickly become your go-to favorite. It delivers a perfect balance of tangy lemon filling, creamy topping, and a buttery, tender base that melts in your mouth. Every bite transports you to simpler times when desserts were made with care and full of sunshine. This recipe’s simple ingredients come together to create a luscious, refreshing slice that is as charming as it is delicious.

Ingredients You’ll Need

The magic of the Old Fashioned Lemon Slice Recipe lies in its simple, everyday ingredients that pack so much flavor. Each component plays its part to create layers of texture and taste that make the slice truly unforgettable. From the buttery base to the zesty lemon filling and creamy topping, every ingredient is essential.

• Butter (120 grams): Adds richness and a luscious crumb to the base.
• Caster sugar (1/2 cup for base, 1/2 cup for filling): Sweetens both the crust and the lemon layer to balance the tartness.
• Egg (1): Binds the base ingredients making it tender yet firm.
• Self-raising flour (1 1/2 cups): Creates structure in the base, substitutable with plain flour plus baking powder.
• Lemon zest (from 1 lemon): Infuses a fresh, aromatic citrus flavor into the base.
• Water (1 cup for filling, plus 2 tablespoons for cornflour mix): Helps create the smooth lemon filling texture.
• Lemon juice (1/2 cup): The star ingredient that gives the lemon slice its bright, tangy punch.
• Cornflour/cornstarch (5 tablespoons total): Thickens both the filling and the cream topping for perfect consistency.
• Full cream milk (1 1/2 cups plus 1 tablespoon for cornflour mixture): Adds creaminess to the topping while balancing the tart filling.
• Butter (20 grams for topping): Adds a silky texture to the creamy layer.
• Icing sugar (1/2 cup): Sweetens and smooths the cream topping perfectly.
• Shredded coconut (2 tablespoons, optional): Adds a toasted, nutty garnish for extra flair and texture.

How to Make Old Fashioned Lemon Slice Recipe

Step 1: Prepare the Base

Start by greasing your slice tin and lining it with baking paper. This will make removing your beautiful lemon slice a breeze. Preheat the oven to a moderate 180 degrees Celsius (355 degrees Fahrenheit, fan-forced). Cream the butter and caster sugar together until light and fluffy – this step is key to a tender crumb. Beat in the egg until fully combined, then fold in the sifted self-raising flour and fresh lemon zest. Press the mixture firmly and evenly into your slice tin, using floured hands if needed, then smooth the surface with the back of a spoon or a small jar. Bake for 17 to 20 minutes until the edges are lightly golden. Let this cool completely in the tin so it sets perfectly for the next step.

Step 2: Make the Tangy Lemon Filling

In a saucepan, combine sugar, water, and fresh lemon juice, then bring to a gentle boil. Meanwhile, blend the cornflour with the 2 tablespoons of water to a smooth paste. Stir this paste into the boiling lemon mixture and continue boiling rapidly for about 10 minutes, stirring occasionally as the filling thickens beautifully. Once thickened, allow this luscious filling to cool to lukewarm before spreading it evenly over your cooled biscuit base. Chill this in the fridge now to let it firm up while you prepare the cream topping.

Step 3: Create the Creamy Topping

Heat the full cream milk on the stove just until tiny bubbles form around the edges. In a small bowl, mix the cornflour with 1 tablespoon of milk to form a smooth paste. Whisk this slowly into the warm milk over heat until the mixture thickens into a silky cream. Remove from the heat and quickly stir in the butter cubes and icing sugar, combining until smooth and sumptuous. Allow this cream to cool completely, then whisk it to lighten the texture before spreading it generously over the set lemon filling. For a finishing touch, sprinkle shredded coconut over the top if you are feeling fancy!

Step 4: Chill and Serve

Pop the whole tray back into the fridge and allow the layers to set firmly for at least a few hours – ideally 3 to 4. When ready, use the baking paper overhang to lift the slice gently from the tin, slice into neat squares, and prepare to be impressed by how the layers hold together with that irresistible tang and creaminess.

How to Serve Old Fashioned Lemon Slice Recipe

Garnishes

To elevate your Old Fashioned Lemon Slice Recipe, consider garnishing with a sprinkle of extra shredded coconut for texture and a tropical touch. Fresh lemon zest or thin lemon slices work wonderfully as well, adding a pop of color and enhancing the citrus aroma at serving time.

Side Dishes

This lemon slice pairs beautifully with a cup of hot tea – classic Earl Grey or green tea match particularly well with the slice’s zesty profile. For a more indulgent treat, serve alongside a dollop of fresh whipped cream or a scoop of vanilla bean ice cream for creamy contrast.

Creative Ways to Present

Serve your Old Fashioned Lemon Slice Recipe on a beautiful vintage cake stand to highlight its heritage appeal. For parties, arrange the slices on a platter with edible flowers or a dusting of powdered sugar for added elegance. You can also wrap individual squares in parchment paper for a charming, rustic gift idea.

Make Ahead and Storage

Storing Leftovers

Leftover lemon slice can be stored in an airtight container in the fridge for up to 4 days, and it holds its texture and flavor wonderfully. Keeping the slice chilled ensures the creamy topping stays set and the lemon filling remains fresh and vibrant.

Freezing

You can freeze the lemon slice by wrapping individual pieces tightly in cling film and placing them in a freezer-safe container. Freeze for up to 2 months. When you want to enjoy them, thaw overnight in the fridge for best results.

Reheating

This slice is best served chilled, so reheating is generally not recommended. If you prefer it slightly softer, let slices sit at room temperature for about 20 minutes before serving, allowing the cream topping to soften gently.

FAQs

Can I use plain flour instead of self-raising flour?

Yes! Simply substitute the self-raising flour with plain flour and add 3 teaspoons of baking powder to the mixture to get the right rise and texture for the base.

Is there a dairy-free option for this recipe?

You can substitute the butter with a dairy-free margarine and use a plant-based milk such as almond or oat milk to make this lemon slice dairy-free, though the texture and flavor will be slightly different.

How do I prevent the lemon filling from becoming too runny?

Make sure to cook the lemon filling mixture until it thickens considerably during the boiling step, and use the correct amount of cornflour to achieve that perfect, firm lemon layer that won’t run when cooled.

Why is the cream topping a bit grainy sometimes?

This can happen if the cornflour isn’t fully dissolved before adding to the milk or if the mixture overheats. Whisking continuously and smoothly blending the cornflour with milk before mixing helps avoid lumps and any graininess.

Can I make this slice ahead of time for a party?

Definitely! The Old Fashioned Lemon Slice Recipe actually improves if made a day ahead, as the flavors settle and the layers firm up nicely. Just keep it refrigerated until ready to serve.

Final Thoughts

There is something truly special about the Old Fashioned Lemon Slice Recipe that brings a smile to any gathering. Its perfect harmony of tart, sweet, and creamy layers makes it an irresistible treat that feels both homey and timeless. I hope you give this recipe a go and enjoy every zesty, rich bite as much as I do. Trust me, it’s bound to become a treasured staple in your dessert repertoire!

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