There’s something utterly magical about a Rainbow Bundt Cake. The vibrant colors, the delightful flavors, and the sheer joy it brings to any gathering make it a showstopper dessert that’s perfect for birthdays, celebrations, or just a whimsical treat for yourself. This cake is not only a feast for the eyes but also incredibly moist and delicious. With its layers of colors, each slice reveals a beautiful rainbow that is sure to impress your family and friends. Let’s dive into this fun baking adventure!
Why I Love This Recipe

What’s not to love about a cake that looks this stunning? The Rainbow Bundt Cake is a delightful blend of flavors and colors that creates an unforgettable experience. I adore this recipe because it’s versatile; you can customize the colors and flavors to match any occasion. The moist, buttery cake pairs perfectly with the zesty lemon glaze, creating a balance of sweetness and tanginess that keeps you coming back for more. Plus, it’s a wonderful way to get the kids involved in the kitchen. Who wouldn’t want to mix colorful batter and watch it swirl into a beautiful cake?
What Goes In
This Rainbow Bundt Cake is made with simple ingredients that you probably already have in your pantry. Here’s what you’ll need:
- 3 cups all-purpose flour
- 2 teaspoons baking powder
- 1 teaspoon salt
- 1/2 teaspoon baking soda
- 2 1/4 cups granulated white sugar
- 1 cup (2 sticks) unsalted butter, at room temperature
- 1/4 cup vegetable oil
- 4 large eggs, at room temperature
- 1 tablespoon vanilla extract
- 1 1/3 cups buttermilk
- Red, orange, yellow, green, blue, and purple food coloring (gel paste works best)
- 3 cups powdered sugar
- 1 teaspoon finely grated lemon zest
- 4 to 5 tablespoons freshly squeezed lemon juice
What You’ll Need (Gear)
Before starting the baking process, gather your tools. Here’s a handy list of what you’ll need:
- Bundt pan: A 10-12 cup capacity bundt pan works best for this recipe.
- Mixing bowls: Use a large bowl for the batter and a smaller bowl for the glaze.
- Electric mixer: A stand or hand mixer will make creaming the butter and sugar easier.
- Measuring cups and spoons: Accurate measurements are key to baking success!
- Spoon or spatula: For folding in the colors and mixing the glaze.
Rainbow Bundt Cake: From Prep to Plate

Now, let’s get to the fun part—making your Rainbow Bundt Cake! Follow these steps for a colorful creation.
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Grease and flour your bundt pan generously to ensure easy release after baking.
Step 2: Mix the Dry Ingredients
In a large mixing bowl, whisk together the all-purpose flour, baking powder, salt, and baking soda. Set aside.
Step 3: Cream the Butter and Sugar
In another bowl, beat the unsalted butter and granulated sugar together using an electric mixer until the mixture is light and fluffy, about 3-4 minutes.
Step 4: Add the Wet Ingredients
Add the vegetable oil, eggs, and vanilla extract to the butter mixture. Mix until well combined. Then, gradually add the buttermilk, mixing until smooth.
Step 5: Combine Dry and Wet Ingredients
Slowly add the dry ingredient mixture to the wet ingredients, mixing just until combined. Be careful not to overmix, as this can lead to a dense cake.
Step 6: Divide and Color the Batter
Divide the batter evenly into six bowls. Add a different food coloring to each bowl, mixing until you achieve the desired shades. Remember, gel paste colors are more vibrant!
Step 7: Layer the Batter in the Bundt Pan
Spoon the colored batter into the prepared bundt pan, layering the colors in any order you prefer. You can even use a skewer or knife to swirl the colors together slightly for a marbled effect.
Step 8: Bake the Cake
Bake in the preheated oven for about 55-65 minutes, or until a toothpick inserted into the center comes out clean. Keep an eye on it, as baking times may vary.
Step 9: Cool the Cake
Once baked, remove the bundt pan from the oven and allow the cake to cool in the pan for about 15 minutes. Then, carefully invert the pan onto a wire rack to cool completely.
Step 10: Make the Lemon Glaze
In a small bowl, whisk together the powdered sugar, lemon zest, and freshly squeezed lemon juice until smooth. Adjust the consistency by adding more lemon juice or powdered sugar as needed.
Step 11: Drizzle the Glaze
Once the cake has cooled completely, drizzle the lemon glaze over the top. Let it set for a few minutes before slicing.
Health-Conscious Tweaks

If you’re looking to make some healthier adjustments to your Rainbow Bundt Cake, consider these options:
- Replace some of the all-purpose flour with whole wheat flour for added fiber.
- Use coconut oil instead of vegetable oil for a healthier fat option.
- Substitute some granulated sugar with a natural sweetener like honey or maple syrup (adjust the liquid content accordingly).
- Incorporate Greek yogurt in place of buttermilk for a protein boost.
Behind the Recipe
The Rainbow Bundt Cake is not just a treat; it’s a celebration of colors and flavors. Inspired by the joy of childhood and the beauty of nature, this cake brings happiness to any occasion. The use of vibrant food coloring makes it visually appealing, while the moist, buttery texture ensures that every bite is a delight. It’s a fantastic way to express creativity in the kitchen and share a piece of happiness with loved ones.
Save It for Later
If you want to keep this recipe handy for future baking adventures, consider these tips:
- Bookmark this page for easy access.
- Print the recipe and keep it in your recipe binder.
- Share it with friends and family who love to bake.
Popular Questions
Can I use cake flour instead of all-purpose flour?
Yes, using cake flour can create an even lighter and fluffier texture. Just remember to adjust the measurements slightly, as cake flour is more absorbent.
How can I store leftover Rainbow Bundt Cake?
Store the cake in an airtight container at room temperature for up to three days. You can also refrigerate it for longer freshness, but it’s best enjoyed at room temperature.
Can I freeze the Rainbow Bundt Cake?
Absolutely! Wrap the cooled cake tightly in plastic wrap and aluminum foil before placing it in the freezer. It can last up to three months. Thaw it in the fridge overnight before serving.
What can I substitute for buttermilk?
You can make a quick substitute by mixing one cup of milk with one tablespoon of lemon juice or vinegar. Let it sit for a few minutes to curdle before using it in the recipe.
If you love baking and want to try more delightful recipes, check out these links for inspiration:
Final Bite
There you have it—the ultimate Rainbow Bundt Cake recipe that’s bursting with color and flavor! This cake is not only a treat for the taste buds but also a visual delight that brings joy to any occasion. Whether you’re celebrating a special event or just want to brighten up your day, this cake is sure to impress. So gather your ingredients, unleash your creativity, and enjoy the magic of baking your very own Rainbow Bundt Cake. Happy baking!

Rainbow Bundt Cake
Equipment
- Bundt pan
- Mixing Bowls
- Electric Mixer
- Measuring cups and spoons
- Spoon or spatula
Ingredients
- 3 cups all-purpose flour
- 2 teaspoons baking powder
- 1 teaspoon salt
- 1/2 teaspoon baking soda
- 2 1/4 cups granulated white sugar
- 1 cup unsalted butter at room temperature (2 sticks)
- 1/4 cup vegetable oil
- 4 large eggs at room temperature
- 1 tablespoon vanilla extract
- 1 1/3 cups buttermilk
- Red, orange, yellow, green, blue, and purple food coloring gel paste works best
- 3 cups powdered sugar
- 1 teaspoon finely grated lemon zest
- 4 to 5 tablespoons freshly squeezed lemon juice
Instructions
- Preheat your oven to 350°F (175°C). Grease and flour your bundt pan generously to ensure easy release after baking.
- In a large mixing bowl, whisk together the all-purpose flour, baking powder, salt, and baking soda. Set aside.
- In another bowl, beat the unsalted butter and granulated sugar together using an electric mixer until the mixture is light and fluffy, about 3-4 minutes.
- Add the vegetable oil, eggs, and vanilla extract to the butter mixture. Mix until well combined. Then, gradually add the buttermilk, mixing until smooth.
- Slowly add the dry ingredient mixture to the wet ingredients, mixing just until combined. Be careful not to overmix, as this can lead to a dense cake.
- Divide the batter evenly into six bowls. Add a different food coloring to each bowl, mixing until you achieve the desired shades. Remember, gel paste colors are more vibrant!
- Spoon the colored batter into the prepared bundt pan, layering the colors in any order you prefer. You can even use a skewer or knife to swirl the colors together slightly for a marbled effect.
- Bake in the preheated oven for about 55-65 minutes, or until a toothpick inserted into the center comes out clean. Keep an eye on it, as baking times may vary.
- Once baked, remove the bundt pan from the oven and allow the cake to cool in the pan for about 15 minutes. Then, carefully invert the pan onto a wire rack to cool completely.
- In a small bowl, whisk together the powdered sugar, lemon zest, and freshly squeezed lemon juice until smooth. Adjust the consistency by adding more lemon juice or powdered sugar as needed.
- Once the cake has cooled completely, drizzle the lemon glaze over the top. Let it set for a few minutes before slicing.
Notes
- Use gel paste food coloring for more vibrant and vivid layers in your cake.
- Store leftover cake in an airtight container at room temperature for up to 3 days or freeze it for up to 3 months.
- Try substituting whole wheat flour or healthier oils for a nutritious twist.
- Be careful not to overmix the batter to keep the cake light and fluffy.
- Allow the cake to cool completely before glazing to ensure the glaze sets nicely.
