Sugar-Free Lemon Cake Recipe (Low-Fat, Moist & Zesty)

Hello everyone!

Today’s recipe is a sugar-free, low-calorie, low-fat lemon cake that remains surprisingly tasty and is a favorite with readers. Try it at home and enjoy baking this light treat!

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Taste and Occasion

You shouldn’t expect this low-calorie lemon cake to taste exactly like a traditional lemon cake made with lots of butter and sugar. That said, it’s delicious in its own right—especially considering it contains no added sugar and very little fat.

The texture is airy yet compact, and the lemon flavor is balanced without being overpowering. A thin yogurt-based frosting complements the cake nicely. Because the recipe omits egg yolks and uses low-fat ingredients, the crumb stays quite pale rather than the deep yellow you might see in classic lemon cakes.

Despite the lighter color, the cake is still attractive and inviting. It’s a great option when you want a lighter dessert that still delivers on flavor.

Ingredients

Rather than relying on large amounts of sugar, butter, and whole eggs, this recipe uses low-fat Greek yogurt, whipped egg whites, and a combination of xylitol and erythritol for sweetness. The result is light, moist, and flavorful.

For the best results, use freshly squeezed lemon juice and freshly grated lemon zest. These fresh elements give a cleaner, brighter lemon flavor than many processed lemon products.

Choose a thick low-fat Greek yogurt rather than a runny low-fat yogurt; the thicker texture helps the batter and final cake retain moisture and structure.

How to Make the Low-Fat Sugar-Free Lemon Cake

Preheat the oven to 350°F (175°C). Line a small springform pan (about 8 in / 20 cm) with parchment paper or grease and dust it lightly with flour. In a clean bowl, beat the egg whites with a pinch of salt until they form stiff peaks and set them aside.

In another bowl, whisk together the Greek yogurt, freshly squeezed lemon juice, milk, and melted butter or oil. In a separate bowl combine the all-purpose flour, baking powder, baking soda, grated lemon zest, and the sweetener blend. Add the dry ingredients to the yogurt mixture and stir briefly but thoroughly so everything is incorporated.

Fold the beaten egg whites into the batter gently to preserve the airiness. Pour the batter into the prepared pan, smooth the surface, and bake for 25–35 minutes, or until a toothpick inserted in the center comes out clean. The cake will remain very pale in color. Allow it to cool before spreading the frosting.

For the frosting, mix Greek yogurt with a little lemon juice and powdered form sweetener (or powdered xylitol/erythritol) to taste. Spread a thin layer over the cooled cake.

Top Tip

To avoid any cooling aftertaste or digestive issues that some people notice with single sweeteners, use a blend of xylitol and erythritol. This balances sweetness and mouthfeel for a more pleasant finish.

Variations

If you want variations on this theme, consider a gluten-free version using almond flour, or try a vegan lemon cake made with plant-based yogurt and egg replacers. You can also explore versions with coconut or poppy seeds to change texture and flavor while keeping the cake lighter.

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