Grape Cake (Dairy-Free & Gluten-Free Option)
This grape cake is soft, fluffy, and packed with real grape flavor thanks to grape juice, grape jam, and grape jello. It’s a fun, unexpected cake that feels nostalgic, playful, and perfect for celebrations of all kinds. With gluten-free and dairy-free options, it’s a cake everyone can enjoy!
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The Best Grape Cake
This cake is all about bold fruit flavor, a tender crumb, and flexibility. It’s simple to make but still feels special and a little unexpected.
- Real Grape Flavor: Made with grape juice, jelly, or jam for a bold, juicy grape taste.
- Moist & Fluffy Texture: A doctored cake mix keeps the crumb light, tender, and reliable every time.
- Diet-Friendly Options: Easy to adapt for gluten-free and dairy-free baking.
- Fun & Unique: A playful twist on classic layer cake that always surprises people (in the best way).
Grape Cake Ingredients & Substitutions
This recipe uses straightforward ingredients that work together to create maximum grape flavor. Below are a few notes on why each one matters and how to swap when needed.
For the Grape Cake
- White cake mix: Creates a soft, neutral base that lets the grape flavor shine (use gluten-free cake mix if needed).
- Grape jello powder: Intensifies the grape flavor and adds color.
- Salt: Balances the sweetness.
- Grape juice: Adds moisture and real grape flavor.
- Sour Cream: Keeps the cake moist and tender. You can also use full-fat plain Greek yogurt. Dairy-free sour cream and yogurt will both work as substitutes.
- Eggs: Provide structure and lift.
- Vegetable oil: Ensures a soft, fluffy crumb. Use any type of neutral-tasting oil.
For the Grape Buttercream
- Salted butter: Forms the base of a rich, creamy frosting (regular butter works too).
- Powdered sugar: Sweetens and stabilizes the buttercream. A sugar-free substitute, such as Swerve, will work too.
- Salt: Balances sweetness.
- Grape jam/jelly: Adds concentrated grape flavor and natural sweetness.
- Almond extract (optional): Creates depth and enhances the fruit flavor. If you don’t have any in the pantry, simply omit it or replace it with vanilla extract.
- Fresh black grapes (optional): For decorating.
Grape Cake Step-by-Step Instructions
This cake comes together quickly and bakes up beautifully. Take your time with the buttercream, as it makes a big difference in the final texture.
- Prep: Preheat the oven to 350°F and grease or line two 8-inch cake pans with parchment.
- Mix dry ingredients: In a large bowl, whisk together the cake mix and grape jello powder.
- Add wet ingredients: Add the grape juice, sour cream, eggs, and oil. Mix until just combined.
- Bake: Divide batter evenly between pans and bake for 20–25 minutes, or until a toothpick inserted comes out with a few moist crumbs. Cool completely.
- Make the buttercream: Beat the butter on high until pale and fluffy, about 5–10 minutes. Add powdered sugar, salt, grape jam, and almond extract if using. Mix on low, then beat on high until smooth and airy.
Grape Cake Assembly
- Level: Trim cake layers if needed.
- Fill: Place one layer on a cake board, brush lightly with grape juice, and spread buttercream on top. Add a small amount of grape jam if desired.
- Repeat: Continue with remaining layers.
- Chill: Refrigerate for 20 minutes to set.
- Frost: Frost the outside of the cake and decorate with fresh grapes if using.
Fun Grape Cake Flavor Twists
If you want to play around with the flavor or presentation, these simple ideas are easy ways to make the cake your own.
- Fresh Grape Finish: Top the cake with seedless grapes for a fresh, decorative touch.
- Extra Juicy Layers: Brush each cake layer with a little grape juice before frosting for even more flavor.
- Jammy Filling: Spread a thin layer of extra grape jam between layers for pockets of fruity sweetness.
Helpful Tips & Tricks
These tips will help ensure your cake bakes evenly and stays soft, fluffy, and flavorful.
- Juice Control: Brush layers lightly — too much liquid can make them soggy.
- Don’t Overmix: Mixing just until combined keeps the cake light and fluffy.
- Room Temperature Ingredients: Helps everything blend smoothly and bake evenly.
- Whip the Butter First: Beating the butter well before adding sugar makes a noticeably lighter frosting.
The Best Grape Cake Recipe
This grape cake is soft, fruity, and full of real grape flavor in every bite. It’s a fun twist on a classic layer cake and easily adaptable for gluten-free and dairy-free baking.
If you make it, please leave a 5-star rating and review, and tag me on social @cakedbykatie so I can see your beautiful creation.
More Doctored Cake Mix Recipes
If you appreciate an easy doctored cake mix recipe, I think you will adore these:
**Blog post & photos updated December 29, 2025.
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Grape Cake (Gluten-Free & Dairy-Free Option)
- Total Time: 2 Hrs 25 Min
- Yield: 16 Slices 1x
- Diet: Gluten Free
Description
This grape cake is soft, fluffy, and packed with real grape flavor thanks to grape juice, grape jello, and grape jam. It’s a fun, unexpected cake that’s perfect for birthdays, celebrations, or anytime you want something fruity and nostalgic.
Ingredients
Grape Cake
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1 box (461g) white cake mix *regular or gluten-free
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1 (85g package) grape jello powder
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3/4 cup grape juice, room temperature
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2/3 cup sour cream, room temperature *regular or dairy-free
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3 large eggs, room temperature
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1/3 cup vegetable oil
Grape Buttercream
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2 cups salted butter, room temperature *regular or dairy-free
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4 cups powdered sugar
- 1 teaspoon fine sea salt
- 1/2 cup grape jam
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optional: 1/2 teaspoon almond extract
- optional: extra grape jam for filling
- optional: black grapes for decor
Instructions
Grape Cake
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Preheat the oven to 350 degrees and prepare two 8-inch round cake pans with non-stick baking spray and parchment paper.
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In the bowl of a stand mixer, add in the cake mix and jello powder, and give it a quick whisk to break up any clumps.
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Add in the grape juice, sour cream, and eggs, and mix until combined. Be careful not to overmix the batter.
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Divide the batter between the cake pans and bake for 20-25 minutes or until a toothpick comes out with a few crumbs.
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Allow to cool in pans for 10 minutes and then invert on a cooling rack to fully cool.
Grape Buttercream
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In the bowl of a stand mixer with the paddle attachment, cream the butter on high speed until light and fluffy. Approximately 5-10 minutes.
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Add the powdered sugar, salt, grape jam, and almond extract (if using) and mix on low until combined.
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Turn the mixer up to high and let mix for 5 minutes until smooth and creamy. Scrape the sides of the bowl when necessary.
Cake Assembly
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Level each cooled cake layer with the cake leveler.
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Place one leveled layer of grape cake on a cake board, plate, and/or cake turntable. With a pastry brush, brush on a little bit of grape juice if desired. Top with approximately 2 cups of buttercream and ½ cup of grape jam, if using.
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Repeat with the remaining layers and apply a thin coat of buttercream all over the cake. Refrigerate for 20 minutes.
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Cover the cake with another layer of buttercream and smooth the sides with a cake smoother.
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Decorate the cake as you please. I piped Wilton 1M swirls on top and placed a black grape on each swirl. Enjoy!
- Prep Time: 2 Hours
- Cook Time: 25 Minutes
- Category: Cake
- Method: Baking
- Cuisine: American
What can you substitute for the white cake mix
If you do not have a cake mix available to you, I would go with my classic vanilla cake layer recipe here and add in the grape jello to the dry ingredients.
My daughter requested a grape cake for her 4th birthday. I love grape flavored stuff, but I know it can be tricky to get the flavor right and not come off tasting like medicine. So glad I found this recipe. It was a huge hit and delicious. I used Welch’s concord grape juice instead of the alcohol since it was a kid’s birthday. Just the right grape flavor and so easy to make. Definitely recommend this recipe.
This recipe is one of my personal favs. Grape is just so darn yummy! Thanks for trying it out Ami.
Why do the swirls on top look a little darker than the icing wrapped around the cake?
Just the lighting
I randomly found this recipe while googling “grape cake” on request for my daughter’s birthday cake. I used your suggested grape juice substitution and it turned out amazing! Who knew grape cake would be so good.
Haha, right?! Grape cake is seriously underrated. I really appreciate you baking this recipe up and sharing it!
I also made this for my daughter’s birthday after she requested a grape flavoured cake!
It turned out really well, with a distinct grape flavour and was easy to make for a novice baker.
I used grape juice and had to substitute strained grape-sweetened blueberry jam for the grape jam as that is not easy to find in Australia.
The grape jelly is an inspired idea. Thank you!
I’m so excited you gave this recipe a shot Diana. Great idea with the strained grape-sweetened blueberry jam!
Hai Katie,
In India we don’t have all that grape stuffs which u have mentioned in your recipe. Can u pls suggest the substitutions that I can do with real grapes. It would be of much help if u do the needful.
Hi Janu, you could use any kind of jam but if you want to make your own grape jam this recipe will guide you through the process.
This cake has become a family favourite!! Love the ease of the recipe and the incredibly moist flavourful finished product!
I’m so happy to hear that you like this one, Tiana. Grape is such an underrated flavor!
I used this cake recipe for a 3 year old who requested grape cake. I could not find grape jello ANYWHERE so I’m a pinch I used skittles wild berry jello(who knew that was a thing?) and also used the grape juice. I made a test batch of cupcakes first to make sure I wanted to present this to my cousins daughter and let me just tell you…. Fantastic! I was so surprised how amazing this was. It was also a hit at the party with everyone. People preferred it over the other vanilla with strawberry filling. So full of flavor. I will be keeping this one for sure! Thank you!
Yay! That thrills me to hear Tara. I’m totally intrigued with skittles wild berry jello now…
I also found this recipe while scouring the internet after my 3 (almost 4) year old requested a grape birthday cake, and I too had an *impossible* time finding grape jello! I ended up ordering some from Amazon, but I’m glad to know that skittles wild berry is an acceptable substitute. I’m going to do a test run this weekend with grape jello and grape juice and will report back!
Can’t wait to hear. I hope your kiddo approves.
Do you have to use dairy free or is that just your preference and how long do you think this would bake in a 9×13 pan
You can absolutely make this with regular dairy ingredients. I would check it after 20-25 minutes in a 9×13 pan.
Hi There.
Can I use this recipe in two 9 inch pans? Also I don’t have cake mix and I saw your vanilla cake recipe , I’m assuming I only follow the dry ingredients from it(including the salt 1tsp) and wet ingredients from the grape cake recipe, right?
Please help
Yes to both questions!
Hey, I don’t eat gelatin productions. Do you have any recommendations for substitutes for the grape jello? The only vegan jellos I could find are orange, raspberry, and unflavored. Do you think those would work? Or do you have any other ideas for a substitute? Thank you!!
Yes, those would absolutely work and be delicious! You could also use a box of instant pudding too if you’re vegan.
In regards to my previous comment, I also found a strawberry and peach vegan jello. Thank you!
Can this cake recipe be made and then FROZEN? Of course before it’s iced.
I need to make this a few weeks ahead.
Thank you.
Yes, it freezes like a dream. Double wrap the layers in saran wrap and freeze.
Hello! The cake mix box I found is 404 grams, how would I adjust the recipe? Thanks!
According to the box, how many 8 or 9 inch cake rounds does it make?