This Rainbow Surprise Loaf Cake is SO easy to make and the kids will absolutely love it! Such a cute idea for a birthday party and you can use any shape for the surprise inside.
You can also use this fun cake idea for Holiday themes like this Heart Loaf Cake we made for Valentine’s Day, etc…
Rainbow Surprise loaf Cake Ingredients
- 2 boxes of vanilla cake mix
- 6 eggs
- 1 cup canola oil
- 1 cup water
- Purple, pink, blue and teal gel coloring
- 4 disposable piping bags
- cookie sheet with parchment paper
- loaf pan
- star cookie cutter
How To Make Rainbow Surprise Loaf Cake
- Make the 2 white cake mixes according to the boxes
- Mix one box into a medium bowl and the other into another medium bowl.
- Take the second white bowl and split it into 4 bowls.
- Take the color and add a color to one bowl each.
- Scoop 1 color of the 4 batters into one piping bag.
- Repeat with remaining 3 colors
- Using the cookie sheet with parchment paper, take 1 of the piping bags, cut the tip off, pipe one line of the color batter from side to side.
- Repeat with the other colors. Example: purple, pink, teal, green, purple, pink, teal, green until the pan is covered in colorful lines.
- Bake the cake at 350 degrees for for 20 minutes or until cake is baked and a toothpick comes out clean.
- Take the star cookie cutter and cut out star shapes.
- Take your loaf pan and spray pam all over it.
- Pour some of the plain cake batter into the bottom of the pan.
- Take your star shapes and place them standing up into the batter that is already in the loaf pan.
- Slowly pour the remaining batter around the stars so that when it bakes, the batter will bake over the stars and you won’t see them.
- Bake at 350 for 30-40 minutes or until a toothpick comes out clean
- Set aside and let cool before taking out and placing on your favorite serving dish.
Vanilla royal icing
- 3 whites
- 1/4 tsp cream of tarter
- 3 C powder sugar plus 1/2 c on stand by
- 1 tsp vanilla
- Pink and Green gel food coloring
- Confetti Sprinkles
Combine all ingredients, except the colors and sprinkles, into a standing mixer and beat until stiff peaks form.
Add the extra half cup of powder sugar if the royal icing looks like soup once stiff peaks forms. Split into 3 add the two colors into the bowls, mix until you have your desired color, leaving one bowl white. Add the white icing first over the loaf and then drizzle the pink and green
add the sprinkles.
Now you have this adorable Surprise Loaf Cake that the kids will absolutely LOVE!
Here is a close up of the surprise…
This is a fun cake to let the kids help make as well. Would be so cute for a Unicorn themed party!
Other Fun Rainbow and Unicorn Recipes
- Unicorn Poop Bundt Cake
- Funfetti White Chocolate Pudding Cookies
- Rainbow Cake Trifle
- Unicorn Poop Cookies
Rainbow Surprise Loaf Cake
Ingredients
Surprise loaf Cake:
- 2 boxes vanilla cake mix
- 6 eggs
- 1 C canola oil
- 1 C water
- Purple, pink, blue and teal gel coloring
Vanilla royal icing:
- 3 whites
- 1/4 tsp cream of tarter
- 3 C powder sugar plus 1/2 c on stand by
- 1 tsp vanilla
- Pink and Green gel food coloring
- Confetti Sprinkles
Instructions
- Make the 2 white cake mixes according to the boxes
- Mix one box into a medium bowl and the other into another medium bowl.
- Take the second white bowl and split it into 4 bowls.
- Take the color and add a color to one bowl each.
- Scoop 1 color of the 4 batters into one piping bag.
- Repeat with remaining 3 colors
- Using the cookie sheet with parchment paper, take 1 of the piping bags, cut the tip off, pipe one line of the color batter from side to side. Repeat with the other colors. Example: purple, pink, teal, green, purple, pink, teal, green until the pan is covered in colorful lines.
- Bake the cake at 350 degrees for for 20 minutes or until cake is baked and a toothpic comes out clean.
- Take the star cookie cutter and cut out star shapes.
- Take your loaf pan and spray pam all over it.
- Pour some of the plain cake batter into the bottom of the pan
- Take your star shapes and place them standing up into the batter that is already in the loaf pan.
- Slowly pour the remaining batter around the stars so that when it bakes, the batter will bake over the stars and you won't see them.
- bake at 350 for 30-40 minutes or until a toothpick comes out clean
- set aside and let cool before taking out and placing on your favorite serving dish.
Icing:
- Combine all ingredients, except the colors and sprinkles, into a standing mixer and beat until stiff peaks form.
- Add the extra half cup of powder sugar if the royal icing looks like soup
- once stiff peaks form split into 3
- add the two colors into the bowls, mix until you have your desired color, leaving one bowl white
- Add the white icing first over the loaf and then drizzle the pink and green
- add the sprinkles
- enjoy