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Easy Banana Cake in a Jar: Foolproof Recipe for Moist, Portable Treats

Easy Banana Cake in a Jar: Foolproof Recipe for Moist, Portable Treats

Craving a simple, affordable dessert that's soft, moist, and kid-approved? Our banana cake delivers just that, with a clever twist: baked in jars for grab-and-go convenience.

These individual portions are perfect for gifting to friends or colleagues, picnics, or quick snacks. As a home baker with years of perfecting easy recipes, I love how this method seals in freshness while making sharing effortless. Here's the straightforward recipe:

Easy Banana Cake in a Jar: Foolproof Recipe for Moist, Portable Treats

Contents
  • Ingredients for 12 x 25 cl jars
  • How to make it
  • Why bake in jars?

Ingredients for 12 jars of 25 cl

  • 150g melted butter
  • 400g caster sugar
  • 4 eggs
  • 600g mashed bananas (about 4 medium bananas)
  • 15 cl water
  • 420g flour
  • 1/2 teaspoon baking powder
  • 2 teaspoons baking soda
  • 1/2 teaspoon salt
  • 1 teaspoon ground cinnamon
  • 1/2 teaspoon ground cloves
  • 80g crushed walnuts
  • 12 jars with 25 cl capacity

Prep time: 10 mins
Cook time: 45 mins

How to Make It

Easy Banana Cake in a Jar: Foolproof Recipe for Moist, Portable Treats

1. Preheat oven to 160°C.

2. Butter the insides of the jars. Remove wire ties if present.

3. In a large bowl, use an electric whisk to beat melted butter and sugar until smooth.

4. Add eggs, mashed bananas, and water. Whisk until light and fluffy.

5. In a separate bowl, combine flour, baking powder, baking soda, salt, cinnamon, and cloves.

6. Gradually add dry ingredients to the wet mixture in batches, stirring well each time.

7. Fold in the crushed walnuts.

8. Fill jars halfway with batter using a spoon or piping bag (fill a plastic bag and snip a corner).

9. Wipe any batter spills with a damp cloth. Do not add lids yet.

10. Place jars on baking paper in the oven for 40-45 minutes. Sterilize lids in boiling water meanwhile.

11. Remove jars, add lids immediately—the heat will seal them. Cool completely. Store in fridge up to 1 week.

12. For a traditional cake, use 2 (23 x 13 cm) molds; bake 55-60 mins.

13. Test doneness with a toothpick in the center—it should come out clean. Enjoy your homemade banana cake!

Why Bake in Jars?

Easy Banana Cake in a Jar: Foolproof Recipe for Moist, Portable Treats

Two key benefits from my baking experience:

1. Ideal for gifting

Batch-prep multiple jars for thoughtful presents—neighbors, colleagues, parties, or holidays.

2. Freezer-friendly storage

Sealed jars freeze for months, ready for last-minute desserts when time is short.