Banana Traybake Cake

A moist and delicious banana traybake cake (also known as a sheet cake) topped with cream cheese frosting. Very easy to make!

Course Dessert

Cuisine British

Keyword Cake

Prep Time 20

Cook Time 25

Decorating time 20

Total Time 1 5

Servings +

Calories 509kcal

Author thebakingexplorer

Pre-heat your oven to 160C Fan/350F/Gas Mark 4, and grease and line a 12" x 9" traybake tin
Make the cake by mixing the baking spread (or butter) and light brown soft sugar in a large mixing bowl until fluffy, about 2-3 minutes, ideally using an electric mixer
Add the eggs, mashed bananas and vanilla extract, and mix until fully incorporated
Gently whisk or fold in the self raising flour and baking powder. Pour the mixture into the tin, spread it out into an even layer
Bake for 25-30 minutes or until a skewer inserted in the centre comes out clean. Leave to cool fully either in the tin or on a cooling rack
To make the cream cheese frosting, use an electric mixer to beat the butter until smooth. Then mix in the icing sugar until the mixture is smooth. Add the cream cheese and the vanilla extract and mix in until the frosting is thick and smooth. Be careful not to over mix as this can make the frosting sloppy, and you won't be able to get it thick again
Spread or pipe the frosting all over the cake, and decorate by sprinkling the chopped roasted hazelnuts all over the frosting
To serve, slice into squares. Store any leftovers in an airtight container in the fridge and eat within 3 days

Make sure all your ingredients (particularly the butter and eggs) are at room temperature before you start baking.
I used a baking spread for the cake and unsalted butter for the frosting.
You will need a 12" x 9" traybake tin for this recipe. However, if you want to make it in a 9" square tin, check the recipe notes for the measurement details.
I decided to top this cake with cream cheese frosting, but there are so many other options you could top it with such as biscoff buttercream, chocolate buttercream, caramel buttercream, cinnamon buttercream, or coffee buttercream.
I sprinkled some chopped roasted hazelnuts over the cake, this is optional. You could decorate the cake with other chopped nuts like pecans or walnuts. Dried banana slices, sprinkles or leaving it plain are other options too.
You can add some cinnamon or mixed spice to this cake, as it pairs so well with the banana. I'd recommend 2 tsp.
Although I provide cup measurements, I highly recommend weighing your ingredients out using digital kitchen scales. It is the most accurate way to measure ingredients and will ensure the best results. Digital scales are very low cost and can be purchased for around £12 ($16.50).
For teaspoon (tsp) and tablespoon (tbsp) measurements, please use measuring spoons and not the type of spoons you eat with. Again this will ensure accuracy and provide the best results.

If you want to make this cake in a 9" square tin you will need: