These blueberry mini loaf cakes have a tender, buttery crumb, bursts of juicy berries, and a hint of lemon. They are easy enough for a beginner and make a lovely addition to an afternoon tea or a lunchbox. Inspired by the comforting style of British home baking, this version takes about 1 hour, including cooling time.d lightly sweet, with golden edges and pockets of blueberries throughout. Lemon zest lifts the flavour without overpowering the fruit, while a simple lemon glaze adds a tangy finish. Leave the glaze off if you prefer a less sweet cake.

Ingredients
For the Mini Loaf Cakes
- 150g unsalted butter, softened, plus extra for greasing
- 150g caster sugar
- 2 large eggs, at room temperature
- 150g self-raising flour
- ½ teaspoon baking powder
- 2 tablespoons milk
- Finely grated zest of 1 lemon
- 150g blueberries, fresh or frozen
For the Optional Lemon Glaze
- 40g icing sugar, sifted
- 2–3 teaspoons lemon juice
Kitchen Equipment
- 8 mini loaf moulds, each with a capacity of about 150ml
- Large mixing bowl and electric mixer or wooden spoon
- Spatula, measuring spoons, and kitchen scales
- Wire cooling rack
How to Make Blueberry Mini Loaf Cakes
- Prepare the oven: Preheat the oven to 180°C conventional or 160°C fan. Place a shelf in the middle of the oven. Grease 8 mini loaf moulds and line their bases with small strips of baking parchment, or use paper mini loaf cases.
- Cream the butter and sugar: Put the softened butter and caster sugar in a large bowl. Beat for 2–3 minutes until pale and fluffy, scraping down the sides of the bowl as needed.
- Add the eggs: Beat in the eggs one at a time. If the mixture looks curdled, stir in a spoonful of the measured flour before adding the remaining egg.
- Finish the batter: Fold in the self-raising flour and baking powder, followed by the milk and lemon zest. Stop mixing as soon as no dry flour remains.
- Add the blueberries: Gently fold in the blueberries, keeping a few aside for the tops if you like. If using frozen berries, add them straight from the freezer.
- Fill and bake: Divide the batter evenly among the moulds, filling each no more than about two-thirds full. Scatter the reserved berries over the tops. Bake for 22–28 minutes, until golden and a skewer inserted into the cake comes out clean or with a few moist crumbs.
- Cool the cakes: Leave the cakes in their moulds for 10 minutes, then carefully transfer them to a wire rack. Let them cool completely before glazing.
- Make the glaze and finish: Mix the icing sugar with 2 teaspoons lemon juice, adding the remaining juice a little at a time until the glaze is thick but pourable. Drizzle over the cooled cakes and leave to set before serving.

Tips for the Best Blueberry Mini Loaf Cakes
How do I stop the blueberries from sinking?
Make sure the batter is thick enough to hold the berries and fold them in gently. You can also toss the berries with a teaspoon of the measured flour before adding them. Reserving a few for the tops helps distribute the fruit evenly.
Why are my mini loaf cakes dense?
Butter that is too cold can be difficult to cream properly, so let it soften before you begin. Once the flour is added, fold just until combined. Too much mixing can make the cakes firm rather than tender.
How can I tell when the cakes are baked?
The tops should be golden and spring back lightly when touched. Insert a skewer into the cake rather than a blueberry. It should come out clean or with a few moist crumbs, not wet batter.
What if my mini loaf moulds are a different size?
Fill the moulds no more than two-thirds full and place any extra batter in a lined muffin tin. Smaller cakes may bake sooner, while larger moulds may take longer, so start checking a few minutes early.
Serving Suggestions
- Serve with a cup of tea or coffee for an afternoon treat.
- Add a spoonful of Greek yoghurt and a handful of fresh berries.
- Offer alongside whipped cream for a simple dessert.
- Pack an unglazed loaf in a lunchbox or picnic basket.
Storage
Room Temperature
Store completely cooled cakes in an airtight container at room temperature for up to 2 days. Keep them in a cool place away from direct sunlight.
Refrigerator
Keep the cakes in an airtight container in the refrigerator for up to 4 days. Bring them to room temperature before serving for the softest texture.
Freezing
Freeze the cooled cakes without glaze for up to 3 months. Wrap them individually, place in a freezer-safe container or bag, and thaw at room temperature. Add the glaze after thawing.
Nutrition
Approximate values per mini loaf, including the lemon glaze:
- Calories: 300 kcal
- Carbohydrates: 38g
- Protein: 4g
- Fat: 17g
- Saturated fat: 10g
- Sodium: 150mg
Nutrition values are estimates and will vary with ingredients, portion sizes, and whether the glaze is used.
Frequently Asked Questions
Can I use frozen blueberries in mini loaf cakes?
Yes. Add them straight from the freezer without thawing to reduce colour bleeding. The cakes may need an extra minute or two in the oven.
Can I make these blueberry cakes in a muffin tin?
Yes. Divide the batter among lined muffin cups, filling each no more than two-thirds full. Start checking for doneness after about 18 minutes.
Can I use plain flour instead of self-raising flour?
Yes. Replace the self-raising flour with 150g plain flour and add 2 teaspoons baking powder in total, including the half teaspoon already listed in the recipe.
Can I make the cakes without lemon?
Yes. Leave out the lemon zest and glaze for a simple blueberry cake, or use a little vanilla extract in the batter instead.
Can I make one large loaf instead of mini loaves?
You can use a greased and lined 900g loaf tin, although the loaf will be fairly shallow. Begin checking after 40 minutes and bake until a skewer inserted into the cake comes out clean or with a few moist crumbs.
Blueberry Mini Loaf Cakes
Course: DessertCuisine: BritishDifficulty: Easy4
servings30
minutes40
minutes300
kcal1
hour10
minutesTender, buttery mini loaf cakes filled with blueberries and finished with an optional lemon glaze.
Ingredients
150g unsalted butter, softened, plus extra for greasing
150g caster sugar
2 large eggs, at room temperature
150g self-raising flour
½ teaspoon baking powder
2 tablespoons milk
Finely grated zest of 1 lemon
150g fresh or frozen blueberries
40g icing sugar, sifted, for the optional glaze
2–3 teaspoons lemon juice, for the optional glaze
Directions
- Preheat the oven to 180°C conventional or 160°C fan. Grease and line 8 mini loaf moulds of about 150ml capacity.
- Beat the butter and caster sugar for 2–3 minutes until pale and fluffy.
- Beat in the eggs one at a time, adding a spoonful of the measured flour if the mixture curdles.
- Fold in the flour and baking powder, then the milk and lemon zest. Fold in the blueberries gently.
- Divide among the moulds, filling each no more than two-thirds full. Bake for 22–28 minutes until golden and a skewer inserted into the cake comes out clean or with a few moist crumbs.
- Cool in the moulds for 10 minutes, then transfer to a wire rack to cool completely.
- For the optional glaze, mix the icing sugar with enough lemon juice to make a thick, pourable glaze. Drizzle over the cooled cakes and leave to set.
Notes
- Add frozen blueberries without thawing.
- Do not overmix after adding the flour.
- Freeze cooled, unglazed cakes for up to 3 months.
- Total time includes approximately 20 minutes of cooling.







