This Lemon Sponge Cake is light, fragrant, and incredibly easy to make.
The batter contains no butter or milk, making it naturally lactose-free and wonderfully soft.
The cake is filled with a luscious egg-free lemon cream, prepared in minutes with fresh citrus juice.
Perfect for breakfast, a snack, or dessert, this sunny cake brings a touch of Italian simplicity to your table!
⏱ Cooking Times
Preparation: 15 minutes
Cooking: 40 minutes
Total time: 55 minutes
Servings: 8
🧁 Ingredients
For the cake:
4 large eggs
1 cup granulated sugar (200 g)
½ cup vegetable oil (100 g)
½ cup water (100 g)
2 cups all-purpose flour (250 g)
Zest of 1 lemon
1 tablespoon baking powder (16 g)
For the lemon cream filling:
⅓ cup fresh lemon juice (100 ml)
⅓ cup fresh orange juice (100 ml)
3 tablespoons sugar (40 g)
2 tablespoons cornstarch (20 g)
For decoration:
Powdered sugar, for dusting
Lemon slices (optional)
👩🍳 Instructions
Prepare the batter:
In a large bowl, beat the eggs, sugar, and lemon zest with an electric mixer until pale and fluffy.
Add the oil and water, then continue mixing until smooth.Add dry ingredients:
Gradually sift in the flour while mixing to prevent lumps.
Add the baking powder and mix one last time until fully combined.Bake the cake:
Grease and flour a 9-inch (24 cm) round cake pan.
Pour in the batter, smooth the surface, and bake in a preheated oven at 350°F (180°C static or 340°F convection) for 40 minutes, or until a toothpick comes out clean.
Let the cake cool completely before slicing.Prepare the lemon cream:
In a small saucepan, whisk together sugar and cornstarch.
Slowly pour in the lemon and orange juice while whisking to avoid lumps.
Cook over medium heat, stirring constantly, until thickened (about 5 minutes).
Remove from heat and cool.Assemble the cake:
Slice the cooled cake in half horizontally.
Spread the lemon cream evenly over the bottom layer and top with the second layer.
Dust with powdered sugar and garnish with lemon slices.
💡 Tips & Tricks
Add crushed almonds or hazelnuts to the batter for extra texture.
For an even tangier filling, increase the lemon juice slightly and reduce orange juice.
Decorate with powdered sugar stencils for a charming homemade look.
Store covered at room temperature up to 3 days, or refrigerate in summer.
🥄 Nutritional Facts (per slice)
| Nutrient | Amount |
|---|---|
| Calories | 275 kcal |
| Carbohydrates | 35 g |
| Protein | 5 g |
| Fat | 13 g |
| Sugar | 22 g |
| Fiber | 1 g |

NONNA'S LEMON SPONGE CAKE
Notes
Ingredients
For the cake:
- 4 large eggs
- 1 cup granulated sugar (200 g)
- ½ cup vegetable oil (100 g)
- ½ cup water (100 g)
- 2 cups all-purpose flour (250 g)
- Zest of 1 lemon
- 1 tablespoon baking powder (16 g)
For the lemon cream filling:
- ⅓ cup fresh lemon juice (100 ml)
- ⅓ cup fresh orange juice (100 ml)
- 3 tablespoons sugar (40 g)
- 2 tablespoons cornstarch (20 g)
For decoration:
- Powdered sugar, for dusting
- Lemon slices (optional)
👩🍳 Instructions
- Prepare the batter:
In a large bowl, beat the eggs, sugar, and lemon zest with an electric mixer until pale and fluffy.
Add the oil and water, then continue mixing until smooth. - Add dry ingredients:
Gradually sift in the flour while mixing to prevent lumps.
Add the baking powder and mix one last time until fully combined. - Bake the cake:
Grease and flour a 9-inch (24 cm) round cake pan.
Pour in the batter, smooth the surface, and bake in a preheated oven at 350°F (180°C static or 340°F convection) for 40 minutes, or until a toothpick comes out clean.
Let the cake cool completely before slicing. - Prepare the lemon cream:
In a small saucepan, whisk together sugar and cornstarch.
Slowly pour in the lemon and orange juice while whisking to avoid lumps.
Cook over medium heat, stirring constantly, until thickened (about 5 minutes).
Remove from heat and cool. - Assemble the cake:
Slice the cooled cake in half horizontally.
Spread the lemon cream evenly over the bottom layer and top with the second layer.
Dust with powdered sugar and garnish with lemon slices.





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