4 low-sugar sweet desserts

Sweeten your routine with these low-sugar desserts as healthy alternatives to look after your diet

BY Mariona Fernández | 09 December 2025

Sweet desserts are often associated with large amounts of refined sugars and empty calories which, in the long term, can be harmful to your health.

At the same time, there is a belief that healthy alternatives are simple, bland or even boring, although this is not always true. With the right ingredients, it is possible to enjoy delicious sweet desserts with little sugar, satisfying and much lighter.

How does sugar affect the body?

The World Health Organization recommends reducing sugar consumption to 5% of daily caloric intake, which is roughly equivalent to about 25 grams or six teaspoons. Although it may seem little, we often exceed this amount without realising it, as sugar is present in many products such as drinks, sauces and even foods we do not consider “sweetened”.

Excessive consumption can cause clear effects on the body. Various studies link sugar with the development of obesity, diabetes, cardiovascular issues and other health complications. Some health professionals point out that sugar is not nutritionally necessary. Even so, who can resist a treat from time to time?

The good news is that you don’t have to give up desserts entirely to maintain a healthy lifestyle. That’s why we have selected 4 low-sugar sweet desserts, easy to prepare and nutritious, perfect for enjoying without guilt.

Low-sugar sweet desserts

Sugar-free custard

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If there’s one dessert that never fails, it’s custard. For this recipe, we replace vanilla essence with vanilla pods. Same flavour, same creaminess, but much healthier.

Ingredients (4 servings)

500 ml milk
3 egg yolks
30 g cornflour
Peel of 1 lemon
Ground cinnamon to taste
Stevia to taste

Preparation

Mix the cornflour in a bowl with a splash of milk, just enough to dissolve it. Once dissolved, add the egg yolks and whisk. You can use a fork or a whisk.
Separately, open the vanilla pod with a knife, scrape out the seeds and place them in a saucepan. Add the remaining milk, cinnamon, sweetener and the lemon peel.
Heat until it begins to boil, then remove from the heat. Add the egg and cornflour mixture. Stir until combined and return the saucepan to the heat.
Cook until thickened, stirring frequently. Once thickened, remove from the heat and divide into individual containers.
Sprinkle with cinnamon and leave to chill in the fridge. Ready to serve!

Blueberry and dark Chocolate mug cake

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If you’re looking for low-sugar sweet desserts ready in under 5 minutes, this mug cake is ideal. High in fibre, easy to make and perfect for those who avoid complicated baking.

Ingredients

Two tablespoons oat flour
Two tablespoons milk or plant-based drink
1 teaspoon baking poder
Blueberries to taste
2 teaspoons dark chocolate chips
Optional: cinnamon or sweetener

Extra: if you take protein powder, you can add half a tablespoon for extra flavour.

Preparation

For this recipe, quantities are approximate, as the key is achieving a thick and smooth texture.

Add the flour and baking powder to a mug and mix well until combined. If you want extra flavour, you can add vanilla protein powder.
Pour in the milk or plant-based drink and stir until you get a dense but smooth texture. If the mixture is too runny, add a little more flour. At this stage, you can sprinkle in cinnamon or sweetener.
Add the blueberries and chocolate chips. Mix well so they are evenly distributed.
Microwave for 1 minute 30 seconds. If the surface is still runny, microwave for another 30 seconds.
Grab a spoon and enjoy!

Frozen yoghurt bark with berries and peanut butter

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A very refreshing and protein-packed dessert or snack that adds a light and fresh touch. The best part is that this recipe allows endless flavour combinations.

Ingredients

1 low-fat natural Greek yogurt
Berries to taste
Sweetener or cinnamon to taste
1/2 teaspoon peanut butter
Optional: 1 tablespoon granola

Lemon mousse

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One of the best low-sugar sweet desserts to enjoy after a meal. This version is healthier but just as fresh and light.

Ingredients

100 g skimmed milk poder
25 ml wáter
50 ml lemon juice
Zest of half a lemon
Sweetener to taste
1 egg white
75 ml crème fraîche (available in supermarkets)
1 sheet of neutral gelatine

Preparation

Pour the strained lemon juice, water and sweetener into a saucepan over medium-high heat. Remove from the heat when it begins to boil.
Meanwhile, hydrate the gelatine in cold water for 5–10 seconds. Squeeze out the excess water and dissolve it in the previously heated lemon mixture.
In a bowl, whisk the crème fraîche until it thickens. Then slowly add the lemon mixture while continuing to whisk until combined.
Whisk the egg white until stiff and gently fold it into the mixture.
Serve in glasses or a pretty dish. Garnish with a little lemon zest on top and refrigerate for 3–4 hours. A dessert ready to impress!

4 low-sugar sweet desserts

How does sugar affect the body?