This ultra-moist lemon loaf cake delivers all the bright, sun-kissed flavor of a classic bakery treat while remaining low-point and incredibly simple to prepare. By utilizing a clever baking hack that combines sugar-free cake mix with pureed fruit, you completely eliminate the need for heavy oils, butter, or added sugars. Drizzled with a light glaze and sliced straight from the pan, it is the perfect companion to your morning coffee or a quick afternoon snack.
Ingredients
The 3-Ingredient Cake Base
1 box (approx. 16 oz) sugar-free yellow or lemon cake mix
1 can (15 oz) sliced peaches in water or juice (drained and pureed), OR 1.5 cups unsweetened applesauce
3 large eggs
The Bright Lemon Glaze
1/2 cup powdered keto sweetener (like erythritol or allulose)
1.5 to 2 tbsp fresh lemon juice
1 tsp fresh lemon zest (plus extra for crowning the loaf)
Instructions
1. Prep and Heat
Preheat your oven to 175°C (350°F). Lightly spray a standard 9 \times 5\text{-inch} loaf pan with non-stick cooking spray, or line it with parchment paper for effortless removal.
2. Puree the Fruit Base
If you are using canned peaches, drain the liquid thoroughly and place the fruit into a blender or food processor. Blend on high speed for 30 to 45 seconds until completely smooth with no remaining chunks.
3. Mix the Batter
In a large glass mixing bowl, combine the dry sugar-free cake mix, the pureed peaches (or unsweetened applesauce), and the 3 large eggs. Whisk the ingredients together vigorously by hand, or use an electric hand mixer on medium speed for 1 to 2 minutes, until the batter is smooth, thick, and perfectly uniform.
4. Bake to a Golden Rise
Pour the smooth batter into your prepared loaf pan, leveling the top with a spatula. Bake in the center of your oven for 32 to 38 minutes. The loaf is done when the top forms a beautiful, high-rising dome and a toothpick inserted into the very center comes out clean. Let the cake cool in the pan for 10 minutes before transferring it to a wire rack.
5. Whisk the Zesty Glaze
While the cake cools, prepare your simple glaze. In a small bowl, combine the 1/2 cup of powdered keto sweetener with the fresh lemon juice and 1 teaspoon of lemon zest. Whisk with a fork until a smooth, pourable, milky-white glaze forms.
6. Glaze and Garnish
While the loaf is still slightly warm, slowly pour the lemon glaze directly down the center of the cake, allowing it to cascade beautifully down the sides just like the presentation shown in image_15.png. Immediately scatter a generous pinch of extra fresh lemon zest across the wet glaze.
7. Slice and Enjoy
Let the glaze set for 5 minutes. Use a sharp serrated knife to cut the loaf into thick, uniform slices directly inside or outside the baking tin to replicate the perfect serving view in image_15.png.