Mary Berry Fairy Cakes with Butter Icing Recipe

Mary Berry Fairy Cakes with Butter Icing are the perfect teatime treat – light, tender little sponges topped with a creamy, sweet butter icing. This classic British bake delivers a delicate, fine crumb and a rich, buttery finish in every bite.

These fairy cakes take only 27 minutes from start to finish and are beginner-friendly. The key step is creaming the butter and sugar until pale and fluffy – that traps air for a soft texture. A simple butter icing finishes them off beautifully.

What are Mary Berry Fairy Cakes with Butter Icing?

This recipe makes a small batch of four delicate sponge cakes using basic storecupboard ingredients: butter, caster sugar, egg, self-raising flour, and vanilla. The method follows classic British baking – cream the fat and sugar, add egg, then gently fold in the flour.

The result is a light, airy cake with a soft crumb and a mild vanilla flavour. Topped with a simple butter icing (just butter, icing sugar, and milk), these fairy cakes are ideal for afternoon tea, children’s parties, or a quick sweet fix.

Gather These Fresh Ingredients for Mary Berry Fairy Cakes with Butter Icing

You only need a handful of items – here’s what each one does and how to choose them.

For the cakes

• 1/4 cup unsalted butter, softened — The base of the sponge; ensure it’s at room temperature for easy creaming and a tender crumb.
• 1/4 cup caster sugar — Finer than granulated sugar, it dissolves quickly for a light, even texture.
• 1 large egg, lightly beaten — Binds the batter and adds structure. Add gradually to avoid curdling.
• 1/4 cup self-raising flour, sifted — Provides rise without extra leavening. Sifting removes lumps and aerates the flour.
• 1/2 teaspoon vanilla extract — A subtle flavour boost; use good-quality extract for the best taste.

For the butter icing

• 2 tablespoons unsalted butter, softened — Use the same butter brand for consistency; soft but not melted.
• 1/2 cup icing sugar, sifted — Gives sweetness and a smooth, spreadable consistency.
• 1 tablespoon milk (as needed) — Adjust the amount to reach a thick but pipeable texture.

Detailed Step-by-Step Instructions to Make Mary Berry Fairy Cakes with Butter Icing

The process is straightforward – here is how I walk through it.

• Prep and preheat — Preheat oven to 350°F / 177°C. Line a 12-cup mini muffin tin with 4 paper cases (or use a standard tin with cases in 4 cups). Avoid overcrowding for even baking.
• Cream butter and sugar — In a medium bowl, beat 1/4 cup softened butter and the caster sugar together with a wooden spoon or electric hand mixer until pale, light, and fluffy, about 3 minutes. This step is vital for a tender crumb – do not rush it.
• Add egg and vanilla — Gradually add the beaten egg, a little at a time, mixing well after each addition. If the mixture starts to curdle, stir in a teaspoon of the sifted flour to stabilise it. Then mix in the vanilla extract.
• Fold in flour — Gently fold in the sifted self-raising flour using a rubber spatula or metal spoon until just combined. A few streaks of flour are fine – overmixing makes the cakes tough.
• Fill cases — Divide the batter evenly among the 4 paper cases, filling each about two-thirds full. A small cookie scoop or two teaspoons helps keep portions uniform for even baking.
• Bake — Bake for 10 to 12 minutes, until golden and the tops spring back when lightly pressed. A toothpick inserted into the centre should come out clean. Cool in the tin for 5 minutes, then transfer to a wire rack to cool completely before icing.
• Make butter icing — In a small bowl, beat the 2 tablespoons of softened butter until creamy. Gradually add the sifted icing sugar, alternating with a splash of milk, mixing until smooth and spreadable. It should be thick but soft enough to pipe or spread.
• Ice and serve — Once the cakes are completely cool, spread or pipe a small swirl of butter icing onto the centre of each fairy cake. Serve immediately, or store in an airtight container for up to 2 days.

Common Mistakes and How I Fixed Them

Here is what tripped me up the first few times and how to avoid each.

• Curdled batter — Adding the egg too quickly caused the mixture to split. Fix: add it a tablespoon at a time, and stir in a teaspoon of the flour if it starts to separate.
• Dense, heavy cakes — Overmixing the flour activated too much gluten. Fix: fold gently until just combined – a few streaks of flour are okay.
• Uneven baking — Crowding the tin led to some cakes browning faster. Fix: use only 4 cases in a 12-cup tin, leaving empty cups for airflow.
• Icing too runny — Added too much milk at once. Fix: add milk a teaspoon at a time and stop when the icing is thick but spreadable.
• Cakes stuck to cases — Skipped cooling in the tin for 5 minutes. Fix: let them rest in the tin for exactly 5 minutes before moving to a wire rack.
• Flat tops — Butter and sugar weren’t creamed long enough. Fix: cream for a full 3 minutes until the mixture is pale and noticeably lighter.

What Pairs Perfectly with Mary Berry Fairy Cakes with Butter Icing

These little cakes shine alongside the right drinks or desserts – here are some top pairings.

• Earl Grey tea — The floral, citrus notes of bergamot balance the sweet butter icing beautifully.
• Fresh strawberries — A bowl of sliced berries adds a tart, juicy contrast to the rich sponge.
• Custard or clotted cream — For an indulgent dessert, serve the fairy cakes with a dollop of thick cream or warm custard.
• Lemonade or sparkling water — A chilled, fizzy drink cuts through the buttery sweetness – ideal for a children’s party.
• Strong black coffee — The bitterness of espresso offsets the sugar and makes the cakes feel more grown-up.

Pro Tips for Making Mary Berry Fairy Cakes with Butter Icing

These tricks help you nail the perfect sponge every time.

• Weigh ingredients by volume carefully — Use the spoon-and-level method for flour and icing sugar to avoid packing. Too much flour makes cakes dry.
• Bring everything to room temperature — Cold butter and egg won’t cream properly. Leave them out for 30 minutes before starting.
• Use a mini muffin tin even for a small batch — The tall, narrow shape gives the classic fairy cake dome. A standard tin works but yields flatter tops.
• Test for doneness early — Check at 10 minutes. Ovens vary, and overbaking turns the tender crumb dry.
• Sift icing sugar twice — Once before measuring, then again into the butter. This guarantees a lump-free, silky icing every time.
• Pipe the icing in a swirl — Fit a piping bag with a star nozzle for a professional look. If piping isn’t your thing, a small offset spatula does the job neatly.
• Chill the iced cakes for 10 minutes — This sets the icing slightly and makes them easier to stack or transport.

Inspiring Variations of Mary Berry Fairy Cakes with Butter Icing

Once you’ve mastered the basic recipe, try these simple twists.

• Lemon fairy cakes — Add 1 teaspoon finely grated lemon zest to the batter and swap the milk in the icing for lemon juice.
• Chocolate chip version — Fold 2 tablespoons mini chocolate chips into the batter after the flour. Use chocolate butter icing for extra indulgence.
• Raspberry swirl — Drop 1/2 teaspoon seedless raspberry jam onto each cake before baking. Swirl with a skewer for a fruity ripple.
• Coffee butter icing — Dissolve 1/2 teaspoon instant coffee granules in the milk before adding to the icing. Pairs wonderfully with the vanilla sponge.
• Gluten-free option — Replace the self-raising flour with a gluten-free self-raising blend. Add 1/4 teaspoon xanthan gum if the blend doesn’t include it.

How to Store Mary Berry Fairy Cakes with Butter Icing Properly

Keep your fairy cakes fresh with these storage methods.

• Room temperature (iced) — Place in a single layer in an airtight container. Eat within 2 days – the sponge stays moist, but the icing may soften slightly.
• Refrigerate (hot weather) — If your kitchen is warm, store iced cakes in the fridge for up to 3 days. Bring to room temperature for 20 minutes before serving to restore softness.
• Freeze (un-iced only) — Wrap each cooled, un-iced cake tightly in cling film, then pop it into a freezer bag. They keep for up to 1 month.
• Thaw and ice later — Remove frozen cakes from the freezer, unwrap, and thaw at room temperature for 1 hour. Make fresh butter icing and decorate just before serving.

Smart Reheating Tips for Mary Berry Fairy Cakes with Butter Icing

Reheating is best for cakes that have been frozen or stored without icing. Warm the sponge only – icing should stay cool.

• Oven method — Preheat to 300°F / 150°C. Place un-iced cakes on a baking tray and warm for 3-5 minutes. They become soft and slightly crisp on the outside.
• Microwave trick — For a quick warm-up, microwave one un-iced cake on a plate for 10 seconds. Be careful not to overheat – it will turn rubbery.
• Air fryer option — Set air fryer to 320°F / 160°C and heat un-iced cakes for 2-3 minutes. Works well for a batch of 2-4 cakes.

FAQs

Can I freeze Mary Berry Fairy Cakes with Butter Icing?

Yes, but freeze only the un-iced cakes. Wrap them individually in cling film and store in a freezer bag for up to 1 month. Thaw at room temperature and add fresh butter icing before serving.

How long do Mary Berry Fairy Cakes with Butter Icing last in the fridge?

Iced cakes last up to 3 days in the fridge if stored in an airtight container. Let them sit at room temperature for 20 minutes before eating – the sponge softens, and the icing becomes creamy again.

Why did my fairy cakes come out flat?

Flat tops usually mean the butter and sugar weren’t creamed long enough. Cream for a full 3 minutes until the mixture is pale and fluffy. Also check that your self-raising flour is fresh – old flour loses its raising power.

Can I use plain flour instead of self-raising?

Yes, if you add 1/2 teaspoon of baking powder to every 1/4 cup of plain flour. Sift together before folding into the batter. The texture will be very similar.

What can I use instead of caster sugar?

Superfine sugar works perfectly – it’s the same as caster sugar but sometimes labelled differently. In a pinch, blitz granulated sugar in a food processor for 30 seconds. Do not use icing sugar; its cornstarch content changes the texture.

My butter icing is too thick – how do I fix it?

Add milk a few drops at a time and beat well. Stop once the icing reaches a spreadable consistency. If it becomes too thin, add a little more sifted icing sugar to thicken it back up.

Nutritional Value

Based on 1 serving = 1 fairy cake (out of 4 total).

• Calories: 286
• Protein: 2.5g
• Fat: 15.7g
• Carbohydrates: 33.7g
• Fiber: 0.2g
• Sugar: 27.5g
• Sodium: 135mg

Nutritional values are approximations and will vary based on ingredient brands and measurements.

Try These Recipes

• Mary Berry Poached Pears
• Nigella Oat Biscuits
• Jamie Oliver Apple Crumble with Oats
• Mary Berry Gluten Free Fruit Cake
• Mary Berry Overnight Oats

Wrapping Up

Mary Berry Fairy Cakes with Butter Icing are a wonderful little bake – quick to make, beginner-friendly, and endlessly customisable. The light sponge and creamy topping capture everything that’s great about traditional British baking. I hope you try this recipe soon and enjoy every tender, buttery bite.

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