Lemon crumble cake is a delightful dessert that combines a moist, tangy lemon-flavored sponge with a buttery, crunchy crumble topping. Its balance of tartness and sweetness, along with the contrast in textures, makes it a perfect treat for teatime or a light dessert after dinner.
Ingredients
- For the cake:
- 225g (1 cup) unsalted butter, softened
- 225g (1 cup) caster sugar
- 4 large eggs
- 225g (1 3/4 cups) self-raising flour
- 2 tsp baking powder
- Zest of 2 lemons
- 3 tbsp freshly squeezed lemon juice
- 120ml (1/2 cup) whole milk
- For the crumble topping:
- 100g (3/4 cup) plain flour
- 75g (1/3 cup) light brown sugar, packed
- 75g (1/3 cup) unsalted butter, chilled and diced
- 1 tsp ground cinnamon (optional)
- 1 tbsp granulated sugar (for sprinkling)
Instructions
- Preheat your oven to 180°C (350°F) and grease a 23cm (9-inch) square or round cake tin. Line the base with baking parchment for easier removal.
- In a large mixing bowl, cream together the softened butter and caster sugar until pale and fluffy. This usually takes about 3-5 minutes with an electric mixer on medium speed.
- Add the eggs one at a time, beating well after each addition to ensure they are fully incorporated. If the mixture begins to curdle, add a tablespoon of flour to help stabilize it.
- Sift together the self-raising flour and baking powder. Gradually fold these dry ingredients into the wet mixture using a spatula or wooden spoon, being careful not to overmix.
- Gently fold in the lemon zest and lemon juice, then add the milk and mix just until combined. The batter should be smooth and pourable but not runny.
- Pour the batter into your prepared tin and spread it out evenly with a spatula.
- To make the crumble topping, combine the plain flour, light brown sugar, and cinnamon (if using) in a bowl. Add the chilled diced butter and rub it in using your fingertips until the mixture resembles coarse breadcrumbs.
- Scatter the crumble topping evenly over the cake batter, then sprinkle the granulated sugar on top for extra crunch and shine.
- Bake in the preheated oven for 40-45 minutes, or until the top is golden brown and a skewer inserted into the center comes out clean.
- Remove the cake from the oven and allow it to cool in the tin for 10-15 minutes before transferring it to a wire rack to cool completely.
Tips
- Substitutions: You can replace caster sugar with granulated sugar if needed, but caster sugar helps the cake texture stay lighter. For a dairy-free version, use a plant-based butter and milk alternative like almond or oat milk.
- Don’t overmix: When adding the flour, fold gently to avoid developing gluten that makes the cake dense. Stop mixing as soon as the flour disappears.
- Crumble topping texture: Keep the butter chilled and use your fingertips to rub it into the flour and sugar. This prevents the butter from melting and creates a crisp, sandy topping.
- Check doneness carefully: Oven temperatures vary, so start checking the cake at 35 minutes. If the crumble browns too quickly, loosely cover the cake with foil for the remaining bake time.
Serving Suggestions
Lemon crumble cake is delicious served slightly warm or at room temperature. Pair it with a dollop of whipped cream or a scoop of vanilla ice cream to complement the citrus notes. For a lighter option, a spoonful of Greek yogurt with a drizzle of honey works well. This cake also pairs beautifully with a cup of Earl Grey or green tea for a refreshing afternoon treat.
Variations
You can customize this lemon crumble cake in several ways to suit different tastes or occasions. Add 100g of fresh blueberries or raspberries folded into the batter for a fruity twist. For extra texture, mix 50g chopped almonds or pecans into the crumble topping. If you prefer a more intense lemon flavor, add 1 tsp lemon extract or increase the lemon zest by one more lemon. Alternatively, swap out lemon for lime or orange zest and juice for a different citrus profile.
Storage and Reheating
Store the lemon crumble cake in an airtight container at room temperature for up to 2 days. For longer storage, wrap it tightly in plastic wrap and keep it in the refrigerator for up to 5 days. To freeze, wrap the cooled cake securely in foil and place it in a freezer bag for up to 2 months. Thaw overnight in the fridge before serving.
To reheat, warm individual slices in the microwave for 15-20 seconds or place in a preheated oven at 160°C (320°F) for 10 minutes to refresh the crumble topping’s crispness. Avoid overheating as it can dry out the cake.
Frequently Asked Questions
Can I use all-purpose flour instead of self-raising flour?
Yes, but you’ll need to add 2 teaspoons of baking powder to every 225g of all-purpose flour to mimic self-raising flour’s leavening properties. Make sure to sift them together before adding to the batter for even distribution.
How do I prevent the crumble topping from sinking into the cake?
Use chilled butter and rub it into the dry ingredients until you get coarse crumbs. Avoid pressing the crumble into the batter; instead, sprinkle it loosely on top. This helps it stay separate and crisp during baking.
Is it better to use fresh lemon juice or bottled lemon juice?
Fresh lemon juice is preferable because it has a brighter, more vibrant flavor that enhances the cake’s citrus notes. Bottled lemon juice can be more acidic and may contain preservatives, which can slightly alter the taste.
Can I make this cake gluten-free?
Yes, substitute the self-raising flour with a gluten-free self-raising blend. Make sure it contains xanthan gum or another binding agent to help the cake hold together. The texture may be slightly different but will still be delicious.
Why is my lemon crumble cake dense instead of light?
Common causes include overmixing the batter after adding flour, using cold ingredients, or not creaming the butter and sugar long enough. Also, ensure your baking powder is fresh to provide proper rise.
Can I prepare the crumble topping ahead of time?
Yes, you can make the crumble topping a day ahead and store it in an airtight container in the fridge. Bring it back to room temperature before sprinkling it over the batter to ensure it bakes evenly.
With its perfect balance of tangy lemon flavor and buttery crumble texture, this lemon crumble cake is a versatile and crowd-pleasing dessert. Whether for casual family gatherings or special occasions, mastering this recipe will add a bright, comforting cake to your baking repertoire.
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