Biscoff Banana Loaf

Ingredients

• 2ripe bananas
• 140 gcaster sugar
• 55 gsoft margarine or butter, at room temperature
• 1free-range egg, beaten and at room temperature
• 1 tspvanilla extract
• 170 gself-raising flour
• 1/2 tspbaking powder
• 3–4 tbspBiscoff spread
• 2–3Biscoff biscuits, optional

Instructions

1. 1

   Prepare the tin

   Heat the oven to 190°C, or 170°C for a fan oven (Gas Mark 5; 375°F). Grease and line a 900 g (2 lb) loaf tin with greaseproof paper, then set it aside.

2. 2

   Mash the bananas

   Mash the bananas with a fork in a large bowl. Add the sugar, margarine or butter, beaten egg and vanilla extract, then mix until combined.

3. 3

   Add dry ingredients

   Gradually mix in the flour and baking powder until the batter is combined.

4. 4

   Fill the tin

   Pour half of the batter into the lined loaf tin and spread it into the corners.

5. 5

   Layer the spread

   Warm the Biscoff spread in the microwave for about 10–20 seconds to soften it slightly. Drizzle a couple of spoonfuls over the batter, then add the remaining batter.

6. 6

   Marble the top

   Drizzle the remaining Biscoff spread over the loaf and use a skewer to swirl it through the batter. Crumble a few broken Biscoff biscuits over the top.

7. 7

   Bake and cool

   Bake in the preheated oven for about 40 minutes, until golden on top. Leave the loaf to cool in the tin, then slice to serve.

What is banana loaf?

Banana loaf is a close relative of American banana bread: a sweet, sturdy cake baked in a loaf tin, often made with very ripe bananas. This version keeps that familiar base and adds Biscoff spread for a caramelised, spiced swirl.

Biscoff is a spread inspired by Belgian speculoos biscuits. Its warm spice flavour pairs naturally with banana, while the optional biscuit crumbs add a little crunch to the soft loaf.

Nutrition and macros by portion

The nutrition label shows one serving as written: 230 calories, 3g protein, 37g carbs, 7g fat.

Most of the carbohydrates come from the flour, sugar and bananas, while margarine or butter and Biscoff spread provide much of the fat. The egg and flour contribute some protein, though this is mainly a sweet, carbohydrate-led bake. Balance a slice with plain yoghurt or fruit for a more rounded snack.

Choose ripe bananas

Ripeness matters: use bananas with plenty of brown speckles and soft flesh, which mash easily and bring pronounced banana flavour. Firm, barely ripe bananas are harder to mash and less sweet.

Mash thoroughly: a fork is enough, and a few small lumps are fine. Larger chunks can leave uneven pockets in the crumb.

Mix the batter gently

Room-temperature ingredients: the recipe calls for the egg and margarine or butter to be at room temperature. This helps them mix into the mashed banana and sugar without leaving obvious lumps.

Flour last: add the flour and baking powder gradually, stopping once the mixture is combined. Overmixing can make a loaf denser than intended.

Make a distinct swirl

Soften the spread: a brief 10–20 seconds in the microwave makes Biscoff easier to drizzle. Warm it only enough to loosen it slightly.

Layer and swirl: put spread between the two portions of batter, then drizzle the rest on top. A skewer drawn through the top creates a marbled pattern; too much stirring blends the spread into the batter instead.

Check the bake

Look for colour: the loaf is ready when its top is golden, after about 40 minutes in the preheated oven. Oven performance can vary, so use the colour as the recipe's stated visual cue.

Cool in the tin: leave the loaf to settle before slicing. Cutting while very hot can make the tender crumb harder to portion neatly.

Serve it simply

The loaf is easy to slice and serve on its own with tea or coffee. For a more substantial snack, pair a slice with plain yoghurt or fresh fruit.

The biscuit topping is optional, so the loaf still works if you want a smoother top or do not have extra Biscoff biscuits.

Recipe notes & tips

• Use ripe, soft bananas for easier mashing and fuller flavour.
• Bring the egg and margarine or butter to room temperature as directed.
• Mix the flour in gradually and stop as soon as the batter is combined.
• Warm the Biscoff spread briefly so it drizzles without becoming runny.
• Use a skewer for a few broad swirls rather than mixing the spread all the way through.
• Let the loaf cool in its tin before slicing.

Variations

• Biscuit-free top: leave off the optional Biscoff biscuit crumbs for a smooth finish.
• Butter option: use the stated quantity of butter instead of margarine.
• Extra-spiced finish: add a light dusting of ground cinnamon over the top before baking.
• Neat slices: skip the top swirl and spread the softened Biscoff in a single layer instead.
• More banana flavour: choose very ripe bananas with well-speckled skins.

Common mistakes to avoid

• Under-ripe bananas: use soft, speckled fruit so it mashes readily and flavours the loaf.
• Overmixing: stop as soon as the flour and baking powder are combined to avoid a tough crumb.
• Cold ingredients: use the egg and margarine or butter at room temperature as specified for easier mixing.
• Hot spread: microwave only for 10–20 seconds so the Biscoff softens rather than turns very runny.
• Deep swirling: draw the skewer through the top lightly to keep visible ribbons instead of blending them away.
• Slicing too soon: let the loaf cool in the tin first so it is easier to cut.

How to store

Once completely cool, keep the loaf in an airtight container at room temperature and eat within 2–3 days. Reheat a slice briefly in the microwave if you prefer it warm.

Frequently asked questions