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Mason Jar Rainbow Cake Recipe

Make rainbow cupcakes in a jar.   This rainbow cupcake recipe has a couple easy tricks to make these colorful mason jar rainbow cakes.

 

mason jar rainbow cake

Wouldn’t it be fun to serve these Rainbow Cupcakes for a fun St Patrick’s Day dessert?  We made this rainbow in a jar St Patrick’s Day treat from a boxed cake mix to celebrate a day when we all wish to be Irish.   I have always had so much fun with St. Patricks Day, from giving my son green milk to sticking clovers in my girl’s hair.   I never wish to pass a chance to have some fun even if all the kids are grown.   And this Mason Jar Rainbow Cupcake looks like a rainbow in a jar, what fun right?

 

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rainbow cupcakes in a jar

 

 
We are loving all the bright bold colors on these.   These mason jar rainbow cakes e are better than finding gold at the end of the rainbow, they are so pretty and make a delicious St Patrick’s Day Treat. 
 

What you need for mason jar rainbow cakes:

Ingredients:

  • Box of White Cake Mix plus ingredients to make the cake
  • Food Colors
  • White Frosting

 

Equipment Needed

 

How to make rainbow cupcakes in a jar:

Instructions:

 
Spray the inside of the mason jars with a nonstick baking spray and preheat the oven to 350° F.  Prepare the cake mix according to package directions.   Divide the cake batter evenly into 5 separate bowls. (about 1/2 cup of batter in each bowl).

 

rainbow cupcake batter

 

Add different food colors to each of the bowls and mix well to achieve bright bold colors.   Carefully drop blobs of the different colored batter into your prepared jars filling the jars about halfway.
 
Place jars in a 9 X 13 pan and fill with about 1/4 to 1/2 inch of water.   Bake for 45-50 minutes until done. You can test for doneness by using a Cake Tester.   Remove from the 9 X 13 pan of rainbow cupcakes and water bath from the oven.   Remove the jars from the water and place on a rack to cool.
 
rainbow cupcakes in a jar

Once the cupcakes are cool, frost the tops and decorate with St. Paddy’s Day Cupcake Toppers and/or green sprinkles. These Rainbow Cupcakes really take the cake. (pun intended).

 

mason jar rainbow cake 

This Rainbow in a jar was a fun little challenge and so delicious.   And your could use a variety of colors.  Wouldn’t it be fun to make white red cupcakes  for Valentines Day or Christmas? 

 

Other St Patrick’s Day Recipes and Fun:

 

Click HERE to save this recipe for Mason Jar Rainbow Cupcakes to Pinterest

 

mason jar rainbow cake
Print Recipe
5 from 14 votes

Mason Jar Rainbow Cake Recipe

Make Mason Jar Rainbow Cupcakes that look like a rainbow in a jar. Our rainbow cupcake recipe show steps on how to make rainbow cake or mini mason jar cake.
Prep Time15 mins
Cook Time40 mins
Total Time55 mins
Course: Dessert
Cuisine: American, Irish
Keyword: Mason Jar Cupcakes, mason jar rainbow cake, Rainbow Cupcake recipe, rainbow cupcakes in a jar., Rainbow in a Jar
Servings: 8
Calories: 240kcal
Author: Evelyn

Equipment

Ingredients

Instructions

  • Spray the inside of the jars with a non stick baking spray and preheat the oven to 350 degrees F.
  • Prepare the cake mix according to package directions.
  • Divide the cake batter evenly into 5 separate bowls. (about 1/2 cup of batter in each bowl).
  • Add different food colors to each of the bowls and mix well to achieve bright bold colors.
  • Carefully drop blobs of the different colored batter into your prepared jars filling about halfway.
  • Place jars in a 9 X 13 pan and fill with about 1/2 inch of water.
  • Bake for 45-50 minutes until done. You can test for doneness by using a cake tester or long toothpick
  • Remove from the oven and water bath and let cool.
  • Once the cupcakes are cool, frost the tops and decorate with Cupcake Toppers or Sprinkles

Nutrition

Calories: 240kcal | Carbohydrates: 53g | Protein: 3g | Fat: 2g | Saturated Fat: 1g | Sodium: 448mg | Potassium: 40mg | Fiber: 1g | Sugar: 27g | Calcium: 142mg | Iron: 1mg

Recipe Rating




Molly

Monday 17th of March 2014

How fantastic these came out. I love them! So pretty

Lucy

Friday 14th of March 2014

These are so fun!! And I love that the mason jars show off the cupcakes so well!! Pinning.

Claire

Sunday 9th of March 2014

Aww these are great, my kids would love them :)

Jen

Thursday 6th of March 2014

These were too cute, and so festive! My kids loved them

Barb

Monday 3rd of March 2014

These were so very much fun for my granddaughter. Thanks for the clever idea - I would never have thought of making them in a mason jar.