Marble Cake Squares Recipe


I was reminiscing with an old school friend recently about our school days when these marble cake squares came up in conversation!

You know, back in the days when kids were allowed to eat nice things like this at school. (The good days).

After a nostalgic moment about cake (I can’t be the only one who has these cake moments), I decided this had to be my next bake.

I would have been surprised if there were lots of fancy ingredients going in considering in school, it was a quick bake made on the day to feed up to 800 people on a school budget, so I kept the recipe really simple.

Thankfully, it was as easy as I thought and came out exactly the same as it did at school!

I used a very basic cake recipe for a standard 2 layer, round cake, split it into 2, added cocoa powder to one, and randomly placed spoonfuls in a square baking tin. To get the marble effect, I dragged a cocktail stick through in swirl motions. 

These marble cake squares are ideal if you’re going to be expecting guests and want to make a sweet treat to offer them that doesn’t take long to make because they take no decorating! Once baked, just cut into squares and they’re ready to go!

Here’s how I made these marble cake squares

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8 oz caster sugar

8 oz butter/margarine

4 eggs

8 oz self raising flour

1 heaped tablespoon cocoa powder

What you’ll need to make these Marble Cake Squares

9×9 Inch Square Cake Tin

Greaseproof Paper

Electric Whisk

2 Mixing Bowls


Measuring Spoons

Wire Cooling Rack

cocktail sticks 


Prepare by greasing and lining a square 9x9inch cake tin and preheat the oven to 180C.

1. Firstly, take 2 mixing bowls. You are going to be making two mixes at the same time, one plain and one chocolate.

2. Add 4 oz caster sugar and 4 oz butter to both mixing bowls (8 oz caster sugar and 8 oz butter in total). Whisk until light and fluffy.

3. Next, add 2 eggs to both mixing bowls and whisk until combined.

4. Add 4 oz self raising flour to both mixing bowls and whisk until combined.

5. Add 1 heaped tablespoon cocoa powder to one of the mixing bowls and whisk until combined.

6. Place spoonfuls at a time of both mixtures in the lined baking tin in a random order until the base is filled. You should have a random pattern of chocolate and plain cake mixture. 

7. Smooth out the top so that the mixture is evenly spread out and take a cocktail still to draw random swirl patterns through the mixture, creating a marble effect.

8. Place the tin on the middle shelf of the oven and bake for 25-30 minutes.

Tip – Keep the oven door closed until you think the cake is ready, checking by looking through the glass in the door. When you think the cake is done, open the door and press on the top, being careful not to burn yourself. When you take your finger away, if the cake springs back up, then the cake is ready, if a mark is left, bake for longer.

9. When the cake is ready, remove from the oven and turn on to a wire cooling rack. 

10. Leave to cool before cutting into squares.

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If you liked this Marble Cake Squares Recipe, you may also like my Classic Victoria Sponge Recipe, (Click here to read it).

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