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Cake in a jar with frosting

Cake in a Sealed Jar

  • Author: Lindsay
  • Prep Time: 20 Mins
  • Cook Time: 35 Mins
  • Total Time: 55 Mins
  • Yield: 6-8 jars 1x
  • Category: Dessert
  • Method: Oven
  • Cuisine: American


This easy recipe for Cake in a Sealed Jar is perfect for mailing in care packages to friends and family. Best of all, this cake in a jar will stay fresh for for at least a month!



  • 1 box of cake mix (or 1 recipe worth of a cake from scratch)
  • 68 mason jars with lids and rings


1. Prepare your cake batter according to the directions.
2. Fill the mason jars with batter about half way, no more. It will rise to fill the jar as it bakes. Keep the rims of the jars clean.
3. Put jars on a cookie sheet to keep them from tipping over while baking. Bake at 350 degrees for 30 – 35 minutes, or until a toothpick comes out clean.
4. While they are baking, put your jar lids in a pot of boiling water.
5. When the cake is done baking, remove one jar from the oven at a time and screw on the hot lid using oven mits. Set on the counter to cool.
6. It will seal as it cools. It should ‘ping’ as it seals. If you don’t hear a ping, wait until it’s completely cool and press on the top of the lid. If it doesn’t move at all, it’s sealed.
As the cake cools, it will pull away from the sides of the jar, making it easy to pop out of the jar when it’s time to eat!

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