Love in a Jar...errmmm I mean Cake in a Jar!

I love this concept of a Cake in a Jar. It's so simple to do but has maximum impact on the receiver. I was happy to read that many army wives send cakes in a jar to Afghanistan and Iraq  where their husbands are deployed. The wives say it makes them feel close to their husbands by baking their favourite brownies and cake

However a cake in a jar can also be used for many other forms of giving...and with Christmas coming up I thought this is a great idea to give to family, friends, school teachers - as its also easy to post with bubble wrap.

I hope you enjoy this rainbow cake in a literally is Love in a Jar!


Rainbow Cake in a Jar

So this is a very easy and I cheated with a generic Vanilla Cake Mix.

You can also use your favorite Brownie Recipe.

  • 1 box cake mix (mixed according to package instructions)
  • food coloring (pink, yellow, green,red, blue or you can make your own colours)
  • canning jars (jars that can withstand heat - you can find these in local supermarkets)
  1. Preheat oven to 176 degrees. Wash canning jars and dry thoroughly. Set lids and rims aside. Spray inside of each glass jar with a generous amount of non-stick cooking spray.
  2. Make cake batter according to directions on cake mix box.
  3. Divide batter evenly between 5 bowls (approximately 1 cup of batter in each bowl).
  4. Add few drops of neon pink food coloring to the 1st bowl. Stir to blend well.
  5. Add few drops of regular yellow food coloring to the 2nd bowl. Stir to blend well.
  6. Add few drops of regular green food coloring to the 3rd bowl. Stir to blend well.
  7. Add few drops of neon blue food coloring to the 4th bowl. Stir to blend well.
  8. Add few drops of regular red. Stir to blend well.

  1. Spoon about 1/4-cup of each color batter into each of the jars, layering the colors in this order: purple (first), blue, green, yellow, pink (last). Use a paper towel to wipe any spills or drips from the jars.
  2. Place the jars in a glass baking dish. Add 1/4" of water to the bottom of the dish surrounding the jars. Bake for 35-40 minutes. Cake tops should spring back to the touch when done, but don't bake so long that the cakes are brown. You can also use a long bamboo skewer to test doneness if you have one.
  3. Allow cakes to cool completely, about one hour, before frosting.

Side Note **

For the jars to seal themselves, the jars must still be hot. The lids should also be at least room temperature. Sit them on the stove, if necessary. Don't screw on the caps too tightly. Within 15 minutes of capping the jars, you'll hear popping. This is when the heat from the jars cause a vacuum making the jars airtight.


If you plan to use your cakes for care packages to Afghanistan, or to mail them anywhere else, wrap the jars in bubble wrap and then place tightly in a mailing carton. Seal carton as usual.

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