How to Make a 21st Birthday Cake

Updated March 23, 2017

Making a birthday cake is always a better idea than buying a cake from a grocery store or bakery. Not only is it guaranteed fresh, but it is more special. You can make it specific to the exact tastes of the birthday guy.

When it comes to celebrating one's 21st birthday, there should be massive celebration. Making a perfect cake to commemorate this special occasion is imperative. Here you will find a way to make the perfect 21st birthday cake that is sure to thrill its recipient.

Choose the two favourite cake flavours of the special person who is celebrating their 21st birthday party. In order to refrain from being obvious, find this out a month or so before the birthday if it isn't knowledge you already possess.

Get together two pans that are shaped as number "2" and "1." These can be find at most craft stores, including Michaels. You can also find them online and at auctions.

Preheat the oven, according to your cake box recipe. It will usually be between 176 to 204 degrees C.

Mix both flavour cake mixes.

Oil both cake pans. Put one of the flavours in the "2" pan, and place the other flavour in the "1" pan.

Place both cake pans in the oven simultaneously. They should bake side by side. Bake for approximately 30 minutes, making sure to follow the instructions on the boxed cake mix.

Check on the cake by pricking it with a toothpick. When the toothpick comes out clean, your cake is ready.

Arrange both pans on a platter so that the 21 is perfectly centred. Release the cakes from the pans.

Let your cakes cool.

Decorate with the icing and candles.

Bring your masterpiece of a cake out to the celebration. It's sure to be a hit!


Surprise your birthday guest with this cake for best effect.


Make sure the birthday celebrant doesn't have any allergies.

Things You'll Need

  • 2 Containers Icing (Favorite taste of the cake recipient)
  • 2 Boxed Cake Mixes (Different flavours)
  • Mixing Bowl
  • Spoon
  • Eggs
  • Cooking Oil
  • Butter
  • Number "2" Cake Pan
  • Number "1" Cake Pan
  • Large Serving Platter
  • 21 Candles
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About the Author

Robin Raven was first published in 1998. She has contributed to newspapers, magazines and online publications, including "The Malibu Times," "Act'ionLine" for Friends of Animals, USA Today Travel Tips and the official Melissa Gilbert website. Raven specializes in travel, health, beauty, culture, vegan nutrition, joyful living, arts and entertainment. She holds a Bachelor of Fine Arts in writing.