This easy 2-ingredient soda cake recipe combines one 15.25-ounce box of cake mix with one 12-ounce can of regular carbonated soda. Stir the two ingredients together, spread the batter in a greased 9 x 13-inch pan, and bake at 350°F (175°C) for 25–30 minutes.
The result is a light, tender cake with a pleasantly soft crumb and a flavor pairing you can customize. Try white or yellow cake mix with lemon-lime soda, chocolate cake mix with cola, orange cake mix with orange soda, or vanilla cake mix with cherry soda for a quick dessert that needs no eggs, oil, or butter.
Jump to RecipeWhy You’ll Love This Recipe
This soda cake is the kind of dessert that makes busy days easier. With just a boxed cake mix, a can of soda, one bowl, and one baking pan, you can have a homemade-style cake in the oven within minutes.
There is no measuring flour, cracking eggs, softening butter, or searching for a long list of pantry ingredients. The soda supplies the liquid and carbonation, while the cake mix provides the flour, sugar, flavoring, and leavening needed for a dependable bake.
The finished cake has a soft, tender texture and a gentle soda-inspired flavor. It is especially useful for casual gatherings because one 9 x 13-inch pan yields about 12–16 servings, depending on the size of each slice.
- Fast preparation: The batter takes about 5 minutes to mix.
- Simple cleanup: You only need a large bowl, a spoon or spatula, and a baking pan.
- Flexible flavor choices: Different soda and cake mix pairings create a new dessert each time.
- Easy serving: The cake is delicious plain, with powdered sugar, or with optional frosting.
Ingredients You’ll Need
The ingredient list is wonderfully short, but the measurements still matter. Use one modern 15.25-ounce (432 g) box of cake mix and the entire contents of one 12-fluid-ounce (355 ml) can of regular carbonated soda.
- 1 box cake mix: White, yellow, chocolate, orange, vanilla, or another compatible flavor works well.
- 1 can regular soda: Use a full 12-ounce can rather than adding soda by guesswork.
Grease the 9 x 13-inch pan before adding the batter. This small step helps the cooled cake release more cleanly and makes serving easier.
Frosting and powdered sugar are optional finishing touches, not part of the two-ingredient cake itself. If you want the simplest presentation, allow the cake to cool and slice it directly from the pan.
Best Soda and Cake Mix Combinations
A complementary pairing gives the cake its most appealing flavor. Light sodas work beautifully with light-colored cake mixes, while darker sodas bring a deeper note to chocolate cake.
- White or yellow cake mix and lemon-lime soda: This creates a bright, lightly citrusy cake with a clean finish.
- Chocolate cake mix and cola: Cola adds a familiar caramel-like note that suits rich chocolate flavor.
- Orange cake mix and orange soda: The matching citrus flavors make a cheerful cake with a sunny aroma.
- Cherry-chip or vanilla cake mix and cherry soda: Cherry soda gives the cake a sweet fruit character.
Regular soda generally gives the most reliable flavor and browning. Diet soda is used in some published variations, but regular soda is the straightforward choice for this standard version.
How to Make It Step-by-Step
Step 1: Heat the oven to 350°F (175°C), then grease one 9 x 13-inch baking pan thoroughly, paying attention to the corners. Setting up the pan first means the batter can go straight into it once it is mixed.
Step 2: Empty the entire box of dry cake mix into a large bowl. Break up any obvious lumps with a spoon or whisk, but do not add eggs, oil, water, or any other ingredients.
Step 3: Pour the entire 12-ounce can of soda into the bowl with the cake mix. Add it steadily so the liquid spreads across the dry mix and begins to hydrate it evenly.
Step 4: Stir the mixture just until the batter is evenly moistened and mostly smooth. Stop mixing as soon as the dry pockets disappear because excessive beating can make the cake dense or cause extra bubbling and an uneven texture.
Step 5: Pour the batter into the greased pan and use a spatula or the back of a spoon to spread it into an even layer. A level surface helps the cake bake consistently from edge to center.
Step 6: Bake the cake at 350°F (175°C) for 25–30 minutes. Begin checking near the shorter end of the baking range, and look for a center that springs back lightly when touched.
Step 7: Insert a toothpick into the center of the cake to test for doneness. It should come out clean or with a few moist crumbs, but it should not carry wet batter.
Step 8: Cool the cake in the pan for at least 15–20 minutes before serving. Slice it into 12–16 pieces, depending on whether you want generous dessert squares or smaller party portions.
Pro Tips for the Best Soda Cake
Use the full can of soda called for in the recipe. Holding some back changes the batter consistency and can leave the cake drier or less evenly mixed.
Mix gently and briefly. Carbonation creates some bubbling in the batter, so a calm stir is enough; vigorous beating can reduce the cake’s tenderness and contribute to an irregular crumb.
Choose regular soda for the most predictable result. The flavor and sugar content help support the familiar color and taste of a boxed cake, while diet versions may behave differently from brand to brand.
Do not judge doneness by color alone. A darker cake mix can look finished before the middle is baked, so use the light spring-back test and a toothpick inserted in the center.
- Grease the pan before mixing the batter.
- Use a large bowl to prevent splashing when the soda is added.
- Spread the batter evenly instead of leaving a thick mound in the middle.
- Let the cake cool before slicing for cleaner pieces.
- Add toppings only after the cake is cool enough to prevent melting or sliding.
Optional Toppings and Serving Ideas
This cake is ready to serve once it has cooled, but a simple topping can make it feel more special. A dusting of powdered sugar adds sweetness without hiding the soda and cake flavors.
For a richer dessert, spread the cooled cake with optional frosting that matches the flavor. Chocolate frosting suits cola cake, while vanilla, lemon, or cream cheese-style frosting can complement light citrus combinations.
Serve each square with fresh fruit, a spoonful of whipped topping, or a scoop of ice cream if you are serving it as a plated dessert. Keep the additions separate from the basic recipe so the cake remains a true two-ingredient bake.
Storage and Serving Notes
Allow the cake to cool fully before covering it. Store the covered cake according to the storage directions for the cake mix or any frosting used, and keep it protected from air so the cut edges do not dry out.
If you are preparing it for a gathering, bake it in the same 9 x 13-inch pan and slice it shortly before serving. The cake is easiest to portion after its required 15–20 minute cooling period, when the crumb has had time to settle.
For the freshest texture, avoid cutting the entire cake long before it is needed. Leaving the cake whole in the pan helps preserve moisture until you are ready to serve each piece.
Troubleshooting Common Problems
If the cake is dense, the most likely cause is excessive mixing. Stir only until the dry mix is moistened, and make sure the oven has reached 350°F (175°C) before baking.
If the center remains wet after 25 minutes, continue baking and test again rather than relying on the timer alone. Oven temperatures vary, and the toothpick and spring-back tests are the best indicators of doneness.
If the surface looks uneven, the batter may not have been spread evenly before baking or it may have been mixed too aggressively. Smooth the batter gently in the pan and avoid beating it once the ingredients are combined.
Easy 2-Ingredient Soda Cake
Ingredients
Method
- Heat the oven to 350°F (175°C) and grease one 9 x 13-inch baking pan. Empty the dry cake mix into a large bowl, pour in the entire can of soda, and stir just until the batter is evenly moistened and mostly smooth.
- Pour the batter into the prepared pan and spread it into an even layer. Bake for 25–30 minutes, checking that the center springs back lightly and a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Let the cake cool in the pan for at least 15–20 minutes before slicing. Serve it plain, dusted with powdered sugar, or finished with optional frosting.
Notes
Final Thoughts
This easy 2-ingredient soda cake is a practical, flavorful dessert for whenever you want a homemade-style treat without a complicated ingredient list. One box of cake mix and one 12-ounce can of regular soda are all you need to create a soft sheet cake in about 30–35 minutes, including baking time.
Start with a classic lemon-lime and white cake combination, or try cola with chocolate, orange soda with orange cake, or cherry soda with vanilla. Keep the mixing gentle, bake until the center is set, cool for at least 15–20 minutes, and enjoy every tender slice.
