Gluten-Free Citrus Cake

One of my favourite cakes to make at this time of the year is the Clementine Cake from Nigella Lawson’s How to Eat, a cake which Nigella has quoted as being one of the most popular from her first cookbook, one which happens to be a firm favourite for me – I have multiple copies in various languages, just to prove my point 🙂

The Clementine Cake is made from cooking a few whole clementines for a few hours until they are soft and capable of being mashed to a pulp, to which you add a whole carton of eggs, some sugar, almond meal and baking powder. There is no flour in this recipe, so it is a totally delicious gluten-free cake.

Using the whole fruit means that you get maximum flavour for your cake, not to mention a very moist one. I love this Clementine Cake because it lends itself well to many occasions, whether as a rustic cake for afternoon tea, a dessert with some crème fraîche or wrapped up to take to the park for a picnic.

gluten-free lemon cake on cake stand with fresh lemons on wooden table

Lemon Cake Using Whole Lemons

Although clementines are abundant and in season at the moment, I happen to love the lemon variation which Nigella suggests.

If you love lemon cake, I don’t think you can find a more lemony lemon cake than this. And especially at this time of year in the middle of Europe, a welcoming lemon cake is just the burst of sunshine you need on those grey and gloomy wintry days.

fresh lemons at farmers markets
Organic lemons at the farmers’ markets in Zurich.

Lemon Almond Cake

Given that this Lemon Almond Cake is comprised mostly of whole lemons, it makes sense to use the best-quality lemons you can find, namely organic and wax-free lemons.

That said, the disadvantage of using organic lemons is having to pick out the millions of seeds. Some of the seeds will be pulverised in the food processor, but many will remain in the purée. My preference is to pick them out unless you want a seed-studded cake.

gluten-free lemon cake on white cake stand with fresh lemons

How to Make Lemon Almond Cake

And as for cooking the lemons, you can follow the instructions as per Nigella’s recipe and cook them in simmering water for about 1 hour, or you can zap them in the microwave for a few minutes. I have read about the microwave method from a few people who claimed to have saved lots of time and energy (literally) when making this cake.

Being a very moist cake, there is a tendency for the cake to be quite “wet”, particularly in the centre. I just bake it until a metal skewer inserted in the middle comes out clean and is not sticky to touch.

But baking the cake in a ring cake pan or bundt pan eliminates this problem entirely. In fact, I think this recipe makes the best lemon bundt cake 🙂

The cake keeps quite well for a few days in a covered container, but I would be extra careful in warmer weather; this cake does not like warm and humid temperatures, meaning that it will go mouldy rather quickly if it is not kept in a cool place.

gluten free lemon cake, boil the lemons for 1 hour until tender
gluten free lemon cake, blitz the lemons in a food processor and remove the seeds
gluten free lemon cake, add the eggs, sugar, ground almonds and baking powder
gluten-free lemon cake on white cake stand on stainless steel bench

Tips for Making Lemon Almond Cake

  • Buy organic and unwaxed lemons for the best flavour.
  • Use fewer but slightly larger fruit, rather than more and smaller fruit. In other words, it is better to use 3 medium-sized lemons than 4 little ones. The same rationale applies also if you wish to use oranges or clementines in place of the lemons. I find that what you want to avoid is having too much skin and pith which can make the overall cake taste a bit bitter.
  • Choose fruit which have a fairly thin peel which you can easily gauge by feeling the fruit; a thick peel means more pith, which means more bitterness.
  • Substitute the lemons for the same weight of almost any citrus fruit in this cake.
  • For oranges and clementines, you should reduce the sugar to 225 g (1 cup) and cook the fruit for about 2 hours. Lemons require less time than oranges and clementines to cook, mostly because lemons are generally smaller.
  • Cook the fruit until it breaks easily upon the touch of a spoon. If you cook the fruit for too long, they will start to break down, releasing some of their flavour into the cooking water.
organic lemons at farmers market
Italian lemons at the farmers’ markets in Zurich.
gluten free lemon cake with fresh lemons
5 stars (2 reviews)

Lemon Almond Cake

A delicious dairy-free and gluten-free Lemon Almond Cake using whole lemons which are gently cooked until tender and then blitzed to produce a wonderfully moist cake. Recipe with step-by-step photos.

Ingredients

  • 400 g (13 oz) lemons, about 3 lemons, organic and unwaxed
  • 250 g (1 cup plus 2 tablespoons) caster sugar, (superfine sugar)
  • 250 g (2 ⅓ cup) ground almonds, (almond meal)
  • 6 eggs
  • 5 g (1 teaspoon) baking powder

Instructions 

To Cook the Lemons

  1. Place the lemons in a medium saucepan and cover them with water.
  2. Bring the saucepan to the boil and then reduce to a simmer, cooking the lemons for about 1 to 1.5 hours until the lemons are soft to the touch and a sharp knife goes through the skin easily.
  3. Keep an eye on the saucepan and top up with boiling water from a kettle as necessary.
  4. Once the lemons are cooked, remove them to a bowl and let them cool completely. I tend to cook the lemons the night before making the cake and simply leave the lemons at room temperature overnight.

To Make the Cake

  1. Preheat the oven to 190°C (375°F) (without fan).
  2. Grease and line the base of a 20 cm (8 inch) cake tin.
  3. Place the cooked lemons in the food processor and blitz until you have a fine purée. Remove any seeds that remain.
  4. Add the sugar, ground almonds, eggs and baking powder.
  5. Blitz again until everything is well combined.
  6. Pour the batter into the cake tin and bake for about 1 hour, until a metal skewer inserted in the middle comes out clean. At about 40 minutes, check to see if you need to place a sheet of foil on top of the cake to stop it from browning too much.
  7. Leave the cake to cool in the tin on a wire rack.

Kitchen Notes

  • TIPS FOR MAKING LEMON ALMOND CAKE
    * Due to the use of whole lemons, this is a very moist cake so you need to be make sure that the centre of the cake is cooked through.
    * I like to bake this cake in a ring cake tin or bundt pan so that the cake cooks evenly throughout more easily. When using such a pan, make sure that you fill it to about 1 inch (2 cm) from the top to allow the cake room to rise.
  • STORAGE TIPS
    This cake keeps well on a covered cake stand for several days at room temperature. However, if the weather is warm, I recommend keeping this cake in the fridge.
  • OVEN & STOVE TEMPERATURES
    All recipes on this website have been tested on an induction stove and/or with a conventional oven (i.e. an oven without fan). All recipes on this website use temperatures for a conventional oven, unless otherwise mentioned. Convection ovens (i.e. fan-forced ovens) are typically 20°C/70°F hotter than conventional ovens, but please check your manufacturer’s handbook.
  • CONVERSIONS
    To convert from cups to grams, and vice-versa, please see this handy Conversion Chart for Basic Ingredients.
Calories: 749kcal, Carbohydrates: 48.2g, Protein: 28g, Fat: 50.1g, Cholesterol: 93mg, Sodium: 40.7mg, Fiber: 13g, Sugar: 26g

Did you make this recipe?

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Update

This recipe was first published on 12 January 2012. It has been updated with new photos and more comprehensive recipe notes.