Lemon 7 Up cake is a classic Southern-style dessert that combines the bright tang of lemon with the subtle sweetness and fizz of 7 Up soda. This cake is wonderfully moist and tender thanks to the soda’s carbonation and the fresh lemon juice, making it a perfect treat for spring and summer gatherings or anytime you want a light, flavorful cake.
Ingredients
- 2 cups all-purpose flour
- 1 ½ cups granulated sugar
- 3 large eggs
- ½ cup unsalted butter, softened
- ½ cup vegetable oil
- ½ cup 7 Up soda (room temperature)
- ¼ cup fresh lemon juice (about 2 lemons)
- 1 tablespoon lemon zest (from about 2 lemons)
- 2 teaspoons baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 teaspoon vanilla extract
Instructions
- Preheat your oven to 350°F (175°C). Grease and flour a 9×13-inch baking pan or line it with parchment paper for easy removal.
- In a large mixing bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
- In a separate bowl, cream the softened butter, vegetable oil, and sugar using an electric mixer on medium speed until light and fluffy, about 3-4 minutes.
- Add the eggs one at a time to the butter mixture, beating well after each addition to fully incorporate.
- Mix in the vanilla extract, fresh lemon juice, and lemon zest until combined.
- Alternately add the dry flour mixture and 7 Up soda to the wet ingredients, starting and ending with the flour mixture. Mix gently after each addition until just combined; do not overmix.
- Pour the batter into the prepared pan, smoothing the top with a spatula.
- Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
- Remove the cake from the oven and allow it to cool in the pan on a wire rack for 15 minutes before removing it from the pan to cool completely.
- Optional: Once cooled, dust with powdered sugar or drizzle with a simple lemon glaze made from powdered sugar and lemon juice for extra zing.
Tips
- Substitutions: If you don’t have 7 Up, you can use any lemon-lime soda like Sprite, but avoid diet sodas as they may affect the texture and sweetness.
- Storage: Store the cake in an airtight container at room temperature for up to 3 days or refrigerate for up to a week. Bring to room temperature before serving for best flavor.
- Common mistakes: Avoid overmixing the batter once you add the flour and soda to prevent a dense cake. Also, make sure your baking powder and soda are fresh for proper rise.
- Lemon zest: Use fresh lemon zest for the best flavor. Avoid the white pith as it’s bitter.
Serving Suggestions
This Lemon 7 Up cake is delicious served plain with a dusting of powdered sugar or topped with a tangy lemon glaze or cream cheese frosting for extra richness. It pairs wonderfully with a scoop of vanilla ice cream or fresh berries for a light dessert. For a brunch or tea party, serve alongside lemon curd and fresh whipped cream.
Variations
You can customize this cake in several ways to suit your taste or occasion. Add a cup of blueberries or raspberries to the batter for a fruity twist. Substitute half the flour with almond flour for a nuttier flavor and denser crumb. For a more decadent option, swirl in a lemon cream cheese filling before baking. You can also try replacing the lemon juice with lime for a different citrus profile, or add poppy seeds to the batter for texture and a classic lemon-poppy seed cake variant.
Storage and Reheating
Store the cake wrapped tightly in plastic wrap or in an airtight container at room temperature for up to 3 days. If refrigerated, it will keep for up to 7 days but may dry out slightly; allow it to come to room temperature before serving. For longer storage, you can freeze the cake (wrapped well in plastic wrap and then foil) for up to 2 months. Thaw overnight in the refrigerator and bring to room temperature before serving.
To reheat, warm individual slices gently in the microwave for 10-15 seconds or in a preheated 300°F (150°C) oven for about 10 minutes, covered loosely with foil to prevent drying out.
Frequently Asked Questions
Can I use diet soda instead of regular 7 Up?
It’s not recommended to use diet soda in this recipe because the artificial sweeteners and carbonation differ from regular soda, which can affect the cake’s texture and sweetness. Regular lemon-lime soda works best for moisture and flavor.
Why does this cake stay so moist?
The carbonation from the 7 Up soda aerates the batter, helping the cake rise nicely while keeping it tender. The combination of oil and butter adds richness, and the lemon juice provides fresh acidity that balances the sweetness and prevents dryness.
Can I make this cake gluten-free?
Yes, you can substitute the all-purpose flour with a gluten-free baking blend that includes xanthan gum. Make sure the blend is meant for cakes and follow the same measurements. The texture may be slightly different but still delicious.
How can I make a lemon glaze for this cake?
Mix 1 cup powdered sugar with 1-2 tablespoons fresh lemon juice until smooth and pourable. Adjust the thickness by adding more sugar or lemon juice. Drizzle over the cooled cake for a bright, sweet finish.
Is it necessary to use both butter and oil?
Using both butter and oil combines the best of both fats: butter adds flavor and richness, while oil keeps the cake moist and tender. You can substitute all oil or all butter, but the texture and flavor may vary slightly.
Can I bake this recipe in cupcake form?
Yes, bake the batter in lined cupcake tins at 350°F (175°C) for about 18-22 minutes or until a toothpick comes out clean. Keep an eye on them to avoid overbaking. This is great for parties or portion control.
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