This coconut and lime traybake is the kind of bake that makes your kitchen smell like sunshine. It’s soft, moist, and full of citrusy zing, with a gentle coconut chew in every bite. No fancy equipment, no fuss—just a simple batter and a tangy glaze that seeps into the sponge.

It’s perfect for casual get-togethers, office treats, or a weekend bake that lasts a few days. If you like balance—sweet but not cloying, sharp but not sour—this one delivers.

Why This Recipe Works

• Oil and yogurt for moisture: Using neutral oil and yogurt keeps the cake tender for days without drying out.
• Two layers of lime: Lime zest in the batter and a lime glaze on top give depth, not just surface tang.
• Coconut inside and out: Desiccated coconut in the batter for texture, and more on top for a toasty finish.
• Traybake format: Bakes evenly, cuts easily, and is great for sharing. No layering or precision icing required.
• Forgiving method: The batter mixes in one bowl and tolerates small substitutions without trouble.

Ingredients

• For the cake:
  • 225 g plain (all-purpose) flour
  • 1 1/2 tsp baking powder
  • 1/2 tsp baking soda
  • 1/2 tsp fine salt
  • 150 g caster sugar (or granulated)
  • 80 g desiccated coconut
  • 2 large eggs, room temperature
  • 200 g plain yogurt (or Greek-style), room temperature
  • 120 ml neutral oil (sunflower, canola, or light olive)
  • 2 limes, zest finely grated
  • 60 ml fresh lime juice (about 2 limes)
  • 1 tsp vanilla extract
• For the lime glaze:
  • 200 g icing (confectioners’) sugar, sifted
  • 2–3 tbsp fresh lime juice
  • 1 tbsp milk or water (as needed for consistency)
• For topping:
  • 2–3 tbsp desiccated coconut, lightly toasted (optional)
  • Extra lime zest, for garnish (optional)

Instructions

1. Prep the tin and oven: Heat the oven to 170°C (340°F).Line a 23 x 33 cm (9 x 13 inch) traybake tin with baking paper, leaving a slight overhang for easy lifting.
2. Mix the dry ingredients: In a large bowl, whisk together flour, baking powder, baking soda, salt, sugar, and desiccated coconut until evenly combined.
3. Whisk the wet ingredients: In a jug or medium bowl, whisk eggs, yogurt, oil, lime zest, lime juice, and vanilla until smooth.
4. Combine wet and dry: Pour the wet mixture into the dry. Stir gently with a spatula until just combined. A few small lumps are fine—do not overmix.
5. Fill the tin: Scrape the batter into the prepared tin and smooth the surface.Tap the tin once on the counter to pop large air bubbles.
6. Bake: Bake for 22–28 minutes, or until the top is lightly golden and a skewer inserted in the centre comes out clean or with a few moist crumbs.
7. Cool slightly: Let the cake cool in the tin on a rack for 10 minutes. This helps it set while staying moist.
8. Make the glaze: In a bowl, whisk icing sugar with 2 tbsp lime juice. Add more lime juice or a touch of milk/water to reach a thick-but-pourable consistency that ribbons off the whisk.
9. Glaze the warm cake: While the cake is still slightly warm, pour over the glaze and spread to the edges.The warmth helps the glaze sink in and set shiny.
10. Add toppings: Sprinkle toasted coconut and extra lime zest over the glaze. Let it cool fully until the glaze firms up, about 30–45 minutes.
11. Slice and serve: Lift out using the paper and cut into squares or bars. Wipe the knife between cuts for clean edges.

Keeping It Fresh

Room temperature: Store slices in an airtight container for up to 3 days.

The glaze helps seal in moisture, so the cake stays soft.

Fridge: If your kitchen runs hot, chill for up to 5 days. Bring to room temperature before serving for the best texture.

Freezer: Freeze unglazed squares, well wrapped, for up to 2 months. Thaw at room temperature, then add fresh glaze and coconut for the best finish.

Benefits of This Recipe

• Quick to make: The batter comes together in one bowl with simple pantry ingredients.
• Light yet satisfying: Lime cuts through sweetness, while coconut adds body and chew.
• Great for sharing: A traybake serves a crowd and travels well for parties or picnics.
• Flexible: Easy to tweak for dairy-free, gluten-free, or egg-free diets with simple swaps.
• Make-ahead friendly: Tastes even better the next day as the lime settles in.

What Not to Do

• Don’t overmix the batter: This toughens the crumb.Stop as soon as the flour disappears.
• Don’t skip the salt: A little salt sharpens the lime and balances the sweetness.
• Don’t pour a runny glaze: Too thin and it disappears into the cake. Aim for thick, spoon-coating ribbons.
• Don’t overbake: Dry coconut can turn the cake crumbly. Start checking at 22 minutes.
• Don’t zest too deep: Avoid the white pith—it’s bitter.Only grate the bright green layer.

Recipe Variations

• Dairy-free: Swap yogurt for coconut yogurt and use a plant-based milk in the glaze. The coconut flavor gets a gentle boost.
• Gluten-free: Use a 1:1 gluten-free flour blend with xanthan gum. Let the batter rest 10 minutes before baking.
• Egg-free: Replace eggs with 120 g unsweetened applesauce plus 1 tsp extra baking powder.Expect a slightly denser crumb.
• Coconut crunch top: Mix 40 g desiccated coconut with 2 tbsp sugar and 1 tbsp melted butter. Scatter over the batter before baking.
• Lime-curd drizzle: Swirl 3–4 tbsp lime curd over the warm glaze for extra zing and a glossy finish.
• Citrus swap: Use lemon or a mix of lemon and lime. For orange, reduce sugar slightly and add a pinch more salt.
• Pineapple twist: Fold in 80 g well-drained crushed pineapple and reduce yogurt by 20 g.It adds tropical juiciness.

FAQ

Can I use coconut milk instead of yogurt?

Yes. Use full-fat coconut milk and add 1 tsp lemon or lime juice to mimic yogurt’s acidity. The texture stays moist, with a slightly richer coconut note.

What if I only have sweetened shredded coconut?

You can use it, but reduce the sugar in the batter by about 25 g and chop the shreds a bit for a finer texture.

The cake will be slightly sweeter and chewier.

How do I know the glaze is the right thickness?

Lift the whisk and let it fall back into the bowl. If the ribbon sits on the surface for 2–3 seconds before melting in, you’re good. If it disappears immediately, add more icing sugar.

Can I bake this in a round tin?

Yes, use a 23 cm (9 inch) round tin with high sides.

Increase the bake time to 28–34 minutes and check for doneness with a skewer.

Why is my cake dense?

Common causes are overmixing, old baking powder/soda, or cold eggs and yogurt. Use fresh leaveners and bring ingredients to room temperature for better lift.

Do I have to toast the topping coconut?

No, but toasting adds a nutty aroma and extra texture. Toast in a dry pan over medium heat for 2–3 minutes, stirring until golden.

Can I make it less sweet?

Reduce the sugar in the batter by up to 30 g without affecting structure.

For the glaze, add more lime juice and a pinch of salt to tame sweetness.

Is lime essential, or can I use bottled juice?

Fresh lime is best because you need the zest for maximum flavor. If you must use bottled juice, keep it to the glaze and rely on lemon zest in the batter.

How many pieces does this make?

In a 9 x 13 inch tin, you’ll get 12 generous squares or up to 20 smaller bites. For clean edges, chill briefly before slicing.

Can I add frosting instead of glaze?

Yes, a light lime cream cheese frosting works well.

Keep it thin and tangy so it doesn’t overpower the coconut.

Wrapping Up

This coconut and lime traybake is bright, simple, and built for sharing. It’s the kind of bake that feels special without fuss, with a tender crumb and a clean citrus finish. Keep it classic with a lime glaze and toasted coconut, or riff with curd swirls and citrus swaps.

Either way, you’ll have a crowd-pleaser that tastes as good on day three as it does straight from the oven.