How to Make Cake in a Jar

Beginner 10 min 16 steps 5339 views Rating: 4.3/5 Published: 2026-03-24

Preheat your oven to 350°F (177°C) and prep the jars.. Beat the butter and sugar.. Add the eggs gradually, then the vanilla extract.

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Steps

1

Preheat your oven to 350°F (177°C) and prep the jars.

Step 1

Preheat your oven to 350°F (177°C) and prep the jars.

2

Beat the butter and sugar.

Step 2

Beat the butter and sugar.

3

Add the eggs gradually, then the vanilla extract.

Step 3

Add the eggs gradually, then the vanilla extract.

4

Combine the flour, baking powder, and salt in a separate bowl.

Step 4

Combine the flour, baking powder, and salt in a separate bowl.

5

Alternate between adding the flour mixture and the half-and-half into the butter

Step 5

Alternate between adding the flour mixture and the half-and-half into the butter mixture.

6

Fill the jars halfway with batter.

Step 6

Fill the jars halfway with batter.

7

Set the jars onto a baking sheet, then bake them for 25 minutes.

Step 7

Set the jars onto a baking sheet, then bake them for 25 minutes.

8

Seal the cakes, if desired.

Step 8

Seal the cakes, if desired.

9

Serve the cakes straight from the jars.

Step 9

Serve the cakes straight from the jars.

10

Whisk the chocolate cake or brownie mix.

Step 10

Whisk the chocolate cake or brownie mix.

11

Combine the water, oil, and eggs in a separate bowl.

Step 11

Combine the water, oil, and eggs in a separate bowl.

12

Stir the wet mixture into the dry mixture.

Step 12

Stir the wet mixture into the dry mixture.

13

Fill the jars halfway with butter.

Step 13

Fill the jars halfway with butter.

14

Press two chocolate squares into the center of each cake.

Step 14

Press two chocolate squares into the center of each cake.

15

Cook the mason jars in the microwave for 1 minute.

Step 15

Cook the mason jars in the microwave for 1 minute.

16

Serve the cakes straight from the jars.

Step 16

Serve the cakes straight from the jars.

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