LOUISE CAKE SLICE – SO EASY!

Golden, buttery layers of coconut and condensed milk create the irresistible Louise Cake Slice, a classic New Zealand treat that’s been winning hearts for generations. This simple yet decadent dessert combines a shortbread-like base with a jammy middle and a crispy coconut meringue topping that delivers the perfect sweet crunch.

Whether you’re hosting afternoon tea or need a crowd-pleasing dessert, this Louise Cake Slice delivers every time. You’ll learn how to master each layer, discover pro tips for the perfect texture, and explore delicious variations to make this recipe your own.

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Why You’ll Love This Recipe

The Louise Cake Slice stands out because it transforms humble pantry ingredients into something truly special. The contrast between the buttery, crumbly base and the light, crispy coconut topping creates an addictive texture combination that keeps you reaching for another piece. Unlike complicated layer cakes, this Louise slice recipe requires no fancy equipment or advanced baking skills.

You can whip it up in under 15 minutes of prep time, making it perfect for busy bakers. The sweetened condensed milk creates a luscious binding layer that keeps the slice moist for days, while the raspberry jam adds a tangy brightness that cuts through the sweetness. Kids and adults alike adore this treat, and it travels beautifully for potlucks, bake sales, or picnics. The aromatic toasted coconut fragrance that fills your kitchen while baking is an added bonus that makes this recipe absolutely irresistible.

Ingredients

For the Base:

• 1 cup (225g) unsalted butter, softened at room temperature
• 1/2 cup (100g) granulated sugar
• 2 cups (250g) all-purpose flour
• 1 teaspoon baking powder
• 1/4 teaspoon salt

For the Topping:

• 3/4 cup (240g) raspberry jam (strawberry works beautifully too)
• 1 can (14 oz/395g) sweetened condensed milk
• 2 cups (160g) desiccated coconut (unsweetened shredded coconut)
• 2 large eggs, lightly beaten

The butter creates that tender, shortbread-like base that melts in your mouth. Using room temperature butter ensures proper creaming with the sugar. The sweetened condensed milk acts as both sweetener and binder for the coconut topping, creating that signature chewy texture. Desiccated coconut provides the best texture, but shredded coconut works in a pinch. Choose a quality jam since its flavor shines through in every bite.

Check out our Creamy Chicken Alfredo with Spinach and Mushrooms if you love ultra-smooth, indulgent sauces packed with flavor.

Pro Tips

Temperature matters significantly when making Louise Cake Slice. Press your base mixture firmly and evenly into the pan to prevent crumbling when cutting. An uneven base leads to pieces that fall apart, so take an extra minute to smooth it completely with the back of a spoon or measuring cup. When spreading the jam layer, warm it slightly in the microwave for 15-20 seconds to make spreading easier without disturbing the base underneath.

Mix the condensed milk, coconut, and eggs thoroughly until every strand of coconut is coated, ensuring the topping holds together beautifully. Watch the baking time carefully during the final 10 minutes—you want golden brown coconut, not burnt edges. The slice continues cooking slightly from residual heat, so removing it when just golden prevents over-baking. Let the Louise cake squares cool completely in the pan before cutting; this allows the layers to set properly and makes slicing clean and easy.

Step by Step Instructions

Step 1: Prepare Your Pan and Oven

Preheat your oven to 350°F (175°C) and line a 9×13-inch baking pan with parchment paper, leaving overhang on two sides for easy removal later. This simple step prevents sticking and makes cleanup effortless. Lightly grease the parchment with butter or cooking spray for insurance.

Step 2: Make the Base

Cream the softened butter and sugar together in a large mixing bowl until light and fluffy, about 2-3 minutes with an electric mixer. In a separate bowl, whisk together flour, baking powder, and salt. Gradually add the dry ingredients to the butter mixture, mixing until just combined. The mixture will resemble coarse crumbs rather than a smooth dough. Press this mixture firmly and evenly into your prepared pan, creating a compact layer that covers the entire bottom. Use the back of a measuring cup to achieve an even surface.

Step 3: Add the Jam Layer

Spread the raspberry jam evenly over the pressed base, leaving a small border around the edges if desired. Work gently to avoid disturbing the base layer underneath. If your jam is thick and difficult to spread, microwave it for 15-20 seconds to soften slightly.

Step 4: Prepare the Coconut Topping

In a medium bowl, combine the sweetened condensed milk, desiccated coconut, and beaten eggs. Stir thoroughly until the mixture is completely combined and every bit of coconut is moistened. The consistency should be thick and sticky, binding together when stirred.

Step 5: Top and Bake

Carefully spoon the coconut mixture over the jam layer, spreading it evenly to cover completely. Don’t worry if some jam peeks through; it adds character. Bake for 30-35 minutes, or until the coconut topping turns golden brown and feels set when gently pressed. The edges will darken slightly before the center, which is normal.

Step 6: Cool and Cut

Remove the pan from the oven and place it on a cooling rack. Let the Louise Cake Slice cool completely in the pan for at least 2 hours. This cooling period is crucial for clean cuts. Use the parchment overhang to lift the entire slice from the pan, then cut into squares or rectangles with a sharp knife, wiping the blade between cuts for neat edges.

Looking for inspiration? Try our Pineapple Chicken Kabobs for another bold dish that balances sweet and savory flavors beautifully.

Variations

Transform your Louise Cake Slice with these delicious adaptations. For a chocolate Louise slice, add 1/4 cup cocoa powder to the base mixture and use apricot jam instead of raspberry for a sophisticated flavor combination. Create a lemon Louise cake by adding 2 tablespoons of lemon zest to the coconut topping and using lemon curd instead of jam for a bright, citrusy twist.

Make it gluten-free by substituting the all-purpose flour with a quality gluten-free baking blend in equal amounts. For a tropical version, mix 1/2 cup chopped dried pineapple into the coconut topping and use pineapple jam for the middle layer. Nut lovers can add 1/2 cup of finely chopped almonds or macadamia nuts to the coconut mixture for extra crunch and richness.

Storage and Serving

Store your Louise Cake Slice in an airtight container at room temperature for up to 5 days, though it rarely lasts that long. The slice actually improves after a day as the flavors meld together beautifully. For longer storage, refrigerate for up to 2 weeks or freeze individual pieces wrapped in plastic wrap and placed in a freezer bag for up to 3 months.

Thaw frozen pieces at room temperature for 30 minutes before serving. Serve these Louise cake squares alongside afternoon tea or coffee for a classic pairing. They’re perfect for school lunchboxes, providing a sweet treat that travels well without crumbling. Dust with powdered sugar for an elegant presentation at dinner parties, or serve warm with a scoop of vanilla ice cream for an indulgent dessert. The slices pair wonderfully with fresh berries and whipped cream for a fancier presentation.

Frequently Asked Questions

Conclusion

This Louise Cake Slice is comfort food at its finest—a nostalgic treat that combines buttery richness, fruity sweetness, and coconut crunch in every perfect bite. It’s the kind of dish that brings people together around the kitchen table, sparking conversations and creating memories over cups of tea. The simplicity of this recipe proves that you don’t need complicated techniques or exotic ingredients to create something truly special.

Whether you’re baking for a special occasion or simply treating yourself on a quiet afternoon, these golden squares deliver pure joy. The forgiving nature of this recipe makes it perfect for beginner bakers building confidence, while the delicious results satisfy even the most experienced home cooks. Mix up a batch today and discover why this classic Kiwi slice has remained beloved for generations, one buttery, coconutty, perfectly sweet square at a time.

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