Lemon Condensed Milk Fridge Slice – Sweet & Tangy Lemon Squares

Lemon Condensed Milk Fridge Slice is the kind of dessert that feels both nostalgic and refreshing. With its buttery biscuit base and smooth, citrusy topping, it delivers a balance of sweetness and tang that lingers pleasantly on the palate. The texture is firm yet creamy, slicing cleanly into neat squares after a few hours in the refrigerator.

This no-bake treat is especially popular during warmer months when turning on the oven feels unnecessary. Lemon Condensed Milk Fridge Slice sets beautifully with minimal effort, making it ideal for gatherings, afternoon tea, or a simple homemade dessert. The combination of crushed biscuits, melted butter, sweetened condensed milk, and fresh lemon juice creates a filling that is silky and bright without being overly sharp.

Each bite offers a crumbly base and a smooth citrus layer that contrasts perfectly in both flavor and texture.

Ingredients Overview

Digestive biscuits or graham crackers form the base of Lemon Condensed Milk Fridge Slice. When crushed finely and combined with melted butter, they create a firm, slightly crumbly crust that supports the creamy topping. Choose plain varieties without added flavors to let the lemon shine.

Unsalted butter binds the biscuit crumbs together. Melted butter coats each crumb, helping the base set firmly once chilled. Using unsalted butter allows better control over the overall flavor balance.

Sweetened condensed milk is the heart of the filling. Its thick, creamy consistency provides structure and sweetness while reacting naturally with lemon juice to thicken the mixture. Full-fat condensed milk works best for a stable slice.

Fresh lemon juice brings brightness and a clean citrus flavor. Bottled juice can be used in a pinch, but freshly squeezed juice offers a more vibrant taste.

Finely grated lemon zest intensifies the citrus profile. The zest contains aromatic oils that deepen the flavor without adding extra acidity.

Optional ingredients include shredded coconut stirred into the base for texture or a light dusting of powdered sugar on top before serving.

Step-by-Step Instructions

Line an 8-inch square baking pan with parchment paper, leaving an overhang on two sides to lift the slice out easily once set.

Crush the digestive biscuits into fine crumbs using a food processor or by placing them in a sealed bag and rolling with a rolling pin. Aim for an even, sandy texture with no large pieces.

In a mixing bowl, combine the crumbs with melted butter. Stir until all crumbs are evenly coated and the mixture resembles damp sand.

Press the mixture firmly into the prepared pan. Use the back of a spoon or the bottom of a glass to create an even, compact layer. Refrigerate for at least 20 minutes to allow the base to firm up.

In a separate bowl, pour the sweetened condensed milk. Add fresh lemon juice gradually while stirring continuously. The mixture will begin to thicken naturally as the acid reacts with the milk proteins.

Stir in the lemon zest until evenly distributed. The filling should be smooth and slightly thickened but still pourable.

Pour the lemon mixture over the chilled base, spreading it evenly with a spatula. Tap the pan gently on the counter to release any air bubbles.

Refrigerate the Lemon Condensed Milk Fridge Slice for at least four hours, or until fully set. For best results, allow it to chill overnight.

Once firm, lift the slice out using the parchment overhang and cut into squares with a sharp knife. Wipe the blade clean between cuts for neat edges.

Common mistakes include not pressing the base firmly enough, which can cause crumbling, or using too little lemon juice, which may prevent the filling from thickening properly.

Tips, Variations & Substitutions

For a coconut twist, mix two tablespoons of desiccated coconut into the biscuit base before pressing it into the pan.

If you prefer a sharper citrus flavor, increase the lemon zest slightly without adding too much extra juice, as excess liquid may affect setting.

Lime juice can replace lemon juice for a different citrus profile. The setting process remains the same.

For a layered look, add a thin topping of whipped cream once the slice has fully set. Chill again briefly before serving.

Gluten-free biscuits work well as a substitute for digestive biscuits, making Lemon Condensed Milk Fridge Slice suitable for those avoiding gluten.

To reduce sweetness slightly, add a small pinch of salt to the filling to balance the condensed milk.

Serving Ideas & Occasions

Lemon Condensed Milk Fridge Slice is ideal for afternoon tea, potlucks, and summer gatherings. Its bright flavor pairs beautifully with hot tea or iced beverages.

Serve chilled straight from the refrigerator for clean slices and a refreshing bite. Garnish with a thin twist of lemon zest or a light dusting of powdered sugar for a simple finish.

Because it travels well, this slice is also a practical option for picnics or dessert tables. Its firm texture holds up without becoming messy.

Nutritional & Health Notes

This dessert contains butter and sweetened condensed milk, making it rich and sweet. Portion size plays an important role in enjoying it as part of a balanced diet.

Lemon juice provides vitamin C and fresh flavor, while the biscuit base contributes carbohydrates for energy.

Preparing Lemon Condensed Milk Fridge Slice at home allows control over ingredient quality and portion sizes. Cutting smaller squares can help manage sweetness while still enjoying the creamy texture.

FAQs

Why didn’t my Lemon Condensed Milk Fridge Slice set properly?

The filling thickens due to the reaction between lemon juice and condensed milk. If it remains too soft, there may not have been enough lemon juice, or it may not have chilled long enough. Allow additional refrigeration time to firm completely.

Can I freeze this slice?

Yes, it can be frozen for up to one month. Wrap it tightly to prevent freezer burn. Thaw in the refrigerator before slicing and serving.

Can I use bottled lemon juice?

Fresh lemon juice is preferred for flavor and natural acidity. Bottled juice can work, but the taste may be less vibrant.

How long does it last in the refrigerator?

Store in an airtight container for up to five days. Keep it chilled to maintain firmness.

Can I double the recipe?

Yes, double the ingredients and use a larger pan. Chilling time may increase slightly to allow the center to set fully.

Is baking required?

No baking is necessary. The base firms from chilling, and the filling thickens naturally with the lemon juice.

Can I add fruit on top?

Fresh berries can be added just before serving. Avoid adding them too early, as excess moisture can affect the surface.

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