Plantain, Salted Caramel & Pecan Praline Cake

Chef’s Tips

Use Very Ripe Plantain: Choose ripe yellow plantains with plenty of brown or black markings. The riper the plantain, the sweeter, softer and more intensely caramelised the finished cake will taste.

Roast the Plantain for Maximum Flavour: Roasting the plantain before blending concentrates its natural sugars and develops rich caramel notes. Allow the roasted plantain purée to cool completely before adding it to the cake mixture.

Brown the Butter Carefully: Cook the butter gently until it becomes golden and develops a rich, nutty aroma. Remove it from the heat as soon as the milk solids turn golden to prevent burning. Brown butter pairs beautifully with ripe plantain and pecan.

Keep the Sponge Light and Tender: Once you add the flour, fold the mixture gently and only until combined. Overmixing can produce a dense cake rather than a soft, tender crumb.

Cool the Cake Completely: Make sure both plantain sponge layers are completely cool before adding the mascarpone filling. Warm cake can cause the filling to soften or melt.

Do Not Over-Whip the Mascarpone: Keep the mascarpone and double cream chilled. Whip only until the mixture is smooth and holds soft, stable peaks. Over-whipping can make the filling grainy.

Cool the Plantain Caramel: Allow the salted plantain caramel to cool before assembling the cake. Warm caramel can soften the mascarpone and cause the cake layers to slide.

Keep the Pecan Praline Crisp: Prepare the praline in advance, but add the decorative shards shortly before serving. Exposure to the mascarpone and caramel will gradually soften the praline.

Chill Before Decorating: For a professional finish, chill the assembled cake for approximately 30–60 minutes before adding the caramelised plantain, praline and final decorations.

For Clean Slices: Use a large, sharp knife dipped in hot water and wiped dry before each cut. This creates neat, restaurant-style portions.

Vegan Variation

To make a vegan plantain, salted caramel and pecan praline cake, replace the dairy butter with a good-quality vegan block butter suitable for baking.

Replace the whole milk with unsweetened oat, almond or coconut milk.

For the eggs, use a reliable vegan egg replacer according to the manufacturer's instructions. A plant-based yoghurt designed for baking can also work, although the texture of the finished sponge may differ slightly from the original recipe.

Replace the mascarpone and double cream with vegan mascarpone or plant-based cream cheese and a plant-based whipping cream.

For the salted plantain caramel, use vegan butter and a plant-based cream. Coconut cream is particularly delicious with plantain because it enhances the cake's tropical flavours.

The pecan praline can remain unchanged when made with pecans, sugar and sea salt.

Always check the labels of chocolate, decorations and other finishing ingredients if you require the entire cake to be suitable for a vegan diet.

Gluten-Free Variation

To make a gluten-free plantain cake, replace the self-raising flour with the same quantity of a good-quality gluten-free self-raising flour blend suitable for cakes.

If your gluten-free flour blend does not already contain xanthan gum, add approximately ½ teaspoon xanthan gum to improve the structure and reduce crumbling.

The ground almonds in the original recipe help retain moisture and create a tender crumb, making this cake particularly suitable for gluten-free adaptation.

Check the baking powder, vanilla extract, icing sugar, caramel ingredients and decorations to ensure they are suitable for a gluten-free diet.

If preparing the cake for someone with coeliac disease, take appropriate precautions to prevent cross-contamination from flour, utensils, baking tins, worktops and other ingredients.

Vegan & Gluten-Free Variation

The cake can also be prepared both vegan and gluten-free.

Use vegan block butter, plant-based milk, an appropriate vegan egg replacement, vegan mascarpone or plant-based cream cheese, plant-based whipping cream and gluten-free self-raising flour.

Add xanthan gum if it is not already included in your gluten-free flour blend.

Because replacing both eggs and wheat flour changes the structure of the cake, handle the sponge gently and allow it to cool completely before removing it from the tins. Chilling the layers before assembling the cake will make them easier to handle.

Allergen Note

This recipe contains nuts, eggs, milk and gluten in its standard form. Dietary substitutions can change the allergen profile, but always check individual product labels carefully. If preparing the cake for someone with an allergy, intolerance or coeliac disease, use ingredients appropriate to their dietary requirements and take suitable precautions against cross-contamination.