My Rainbow Bundt Cakes have been a fun cake to make for any holiday. They are easy to make because all you basically need is some Cake mix, frosting, food coloring and a tube pan or Bundt pan.
The best part about making this dessert is that it’s so fun and easy and it taste great too. Each one becomes a work of art because you never know how it’s going to turn out until you slice it. All the colors twist and swirl as it bakes and it creates a fun dessert that everyone loves.
For this Valentine version, I used Red, Pink, Black and White but you can certainly vary the colors and do it any way you like. If you would like to see a video of me making this cake for Halloween. Just go here: http://www.cookingwithsugar.com/amazing-halloween-rainbow-party-bundt-cake-recipe/
Melting Heart Bundt Cake
Ingredients:
- 1 box Betty Crocker® SuperMoist® white cake mix
- Water, vegetable oil and eggs called for on cake mix box
- 1 box Betty Crocker® SuperMoist® Dark Chocolate cake mix
- Water, vegetable oil and eggs called for on cake mix box
- Black food coloring (I use the Black McCormick)
- Red food coloring (I use the Red McCormick)
- 1 (12 oz) can Betty Crocker® Whipped Fluffy White Frosting
- Colored Sprinkles (optional)
Directions:
Heat oven to 325°F. Generously grease a 12-cup tube (Bundt) cake pan. Make cake batters as directed on boxes. Divide the white cake into two separate bowls.
Add some red food coloring to one bowl and mix to the desired shade of pink. Then, add red to the other and mix to the desired color red.
Pour 2/3 of the chocolate cake batter into a bowl and mix with a few drops of the black food coloring. Discard the remainder of the batter or use it for cupcakes. (You only need 2/3 of the chocolate cake batter, because if you use the whole thing in won’t fit in the tube pan).
Pour 1/2 of the chocolate cake mix into the bottom of the greased pan. Carefully pour the pink over the chocolate, making sure you don’t stir it. Just pour it on top.
Then, carefully pour the red batter over the pink batter and pour in the remainder of the chocolate.
Bake as directed on box or until toothpick inserted in center comes out clean. Cool 5 minutes.
Turn pan upside down onto cooling rack that is placed over a cookie sheet. Cool cake completely, about 30 minutes.
Once cake is cool, equally divide your frosting into 3 bowls. Use the food coloring again to make one bowl red, one bowl pink and leave one white.
Microwave each bowl of frosting for a few seconds on high until it is smooth enough to drizzle over the cake. With a spoon, drizzle the pink frosting back and forth around the whole ring in a striping pattern until you use it all. Then do the same with the red and then the white.
Sprinkle with colored sprinkles if using.
Set cake aside to dry. Store loosely covered and unrefrigerated.
Cake can be made a day or two in advance.













{ 47 comments… read them below or add one }
Love this Sugar! Thanks for sharing. I did do a Christmas one and Halloween one.
Thanks Janet. It is fun for every holiday.
hey that looks so cool
Thanks for the feedback.
I LOVE this idea! I repinned it on Pinterest…so glad I found it!
Thank you Jennifer. It is such a fun cake to make.
Sugar
Dear Sugar,
I want to thank you for all the wonderful recipes you send my way. Yet, it is your passion for cooking and your spirited good nature that is truly the blessing. I honestly look forward to receiving your e-mails – they bring happiness, joy, and anticipation for a new recipe – a chance to make something wonderful.
The Melting Bundt Cake is especially timely – my daughter has a birthday on Valentine’s Day, and I always make a special cake. This year it will be sensational, thanks to you, Sugar.
May God bless you, and I sincerely thank you for allowing me to keep a part om my Italian heritage alive.
Gary C
typo – sorry, Sugar: OF my Italian heritage.
Thank you, Gary C.
Oh you are funny Gary
Oh Gary how sweet of you to take the time to write such nice feedback. I hope your daughter has a beautiful birthday.
God Bless.
Sugar
This looks really cool! I’ll have to be careful the kids don’t get too excited and turn the color to mud! Definitely gonna try this!
Oh it’s so fun. Just make sure you don’t mix the colors together in the pan. Just pour them in so they rest on top of each other.
Enjoy!
Sugar
I love this cake every time you make it. Such a great idea for every holiday!
I know right. My daughter was the one who asked me to make one for Valentines Day and she named it.
Very fun.
I also have the same memories as you growing up. I am soo glad I found you. I am now retired here in the Ozarks, far away from where I grew up on “The Hill” in St. Louis. I am the token Italian down here. Now I feel I have an Italian neighbor in you. I will soon be 72 . When my father died he took his spedini stuffing recipe with him. Do you have one? Thank you and God Bless you. Jo Ann.
Oh Jo Ann you are so sweet. The Ozarks!! WOW! You are far from home. Thank you for your lovely feedback. My mom makes wonderful spedini but she never made a stuffing. How did your dad serve it?
Keep me posted.
Sugar
I love the cake and I love the way it looks with all these bright colors i hope u get my comment
Reem,
You are so sweet to take the time to write to me. Thanks for the feedback and if you make the cake let me know how it goes.
Sugar
i love this sugar valentines day is getting nearer thanks for this because i dont have to think a recipe to cook on valentines day and it look so yummy im sure my hubby will love this!
I saw the Halloween one and just loved it! However, I cant wait that long to try this so Im going to make a Mardi Gras one with Green, yellow and purple! Im hoping it turns out ok.
Mary Jane
Mary Jane,
That is a great idea. I haven’t done one yet for Mardi Gras but I plan to. Send me photos if you make it.
Enjoy!
Sugar
i am so gonna make this! and the cannolis, and everything else you make haha. you’re like the italian mother i never had.
Great to know Matt.
Happy Cooking and thanks for the feedback.
Sugar
Just for clarification…the cake is to be cooled UPSIDE-DOWN? Your pic shows it right-side-up. Thanks!
Nan,
Once I flip it out of the pan I turn it rightside up so it doesn’t flatten out but it doesn’t realy matter.
Have fun making it.
Sugar
Sure I have made them in all flavors.
Would this work with a regular chocolate cake. I am not a fan of Dark Chocolate…
Sure I have made them in all flavors.
Sugar,
But this looks so simple and yummy! This year is mine and my boyfriends first Valentines Day together & I am just ruining my kitchen trying to make the perfect Valentines Day meal! This has helped, I was so close to bashing my head into the counter!
Thank You! I will visit your site often now that I have discovered it! You should thank the Betty Crocker FB page
God Bless!
I found this recipe via the Betty Crocker Facebook Page… & I have to admit I can’t bake worth a tart… <– teehehe
Heather,
WOW!! I didn’t even know it was featured there. I will be sure to go and check it out. I’m sure your dinner will be great. Thank you for the feedback. It is so nice to meet you.
Sugar
Was thinking about making this in cupcakes so I could dole them out. Do you think this would work? How long to cook? Thanks. Made the Christmas one, everyone loved it.
Patty,
Sure it will work. Just cool them so they are cool to the touch this way the frosting won’t melt on them.
Have a Happy Valentines Day!
Sugar
Thanks Sugar. Love your recipes. Keep on cooking!
Patty you are so sweet. Thanks honey.
Sugar
Just like Heather, I found your reciped on BC’s FB page. OHHHHH MYYYYYY. Must follow you now, too.
Hi Lisa,
So nice to meet you. I love spreading fun and joy from my kitchen to others. I do hope you try some of my other recipes.
Thanks for posting and have a Happy Valentines Day.
Sugar
Just made this for my hubby…he loved it…thanks for sharing:)
Laura,
So glad he liked it. Thanks for the feedback.
Sugar
Thank you Sugar! I made this for my family last night! They loved it! I did, however run out of red food coloring
I must have used too much in the cake batter…so I had to get my daughter to get more, lol. My friend, April made one too,.and she ran out of red food coloring,.too! I asked her why she didnt give me a heads up, lol! Loved it though!
I’m so glad you liked it. I use the 1 oz Mc Cormick one and it seems to be more than enough. I should make a note of that. Thanks for the feedback.
Sugar
I took the idea for this cake and I actually put in the colors for Mardi Gras, (purple, gold and green). The colors on the inside came out pretty good except for I didnt put enough gold in it. The frosting was another story! I guess I will have to try it again next year to get it right.
The cake was super yummy though! Everyone loved it.
Oh I’m sure it was great. Thanks for the feedback. I never had a chance to make mine because I wasn’t feeling well this week so it’s nice to know you did.
XXOO Sugar
What a very pretty cake. I also watched your Halloween video, so cool! I will try this one for sure. Thank you.
Ter
Great! Happy Baking.
I make this cake in all the holiday colors, for work. My co-workers love it and they can’t believe its as simple as it is. Just made one for Easter, purple, green and pink, with a little bit of yellow between the layers.
So glad you like it. It is a fun cake for any holiday. Thanks for sharing your feedback.
Sugar
Thanks for the sweet feedback Jennifer.
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