cookie bar

M&M cookie bar

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M&M cookie bar

Difficulty: Easy

Time: 20 minutes plus 10 minutes baking

Serves: 20

We had a cake sale at Lewis’ playgroup and very little time to make anything for it so I decided to try an M&M cookie bar. They’re quick and easy to make as the dough all gets mixed in one bowl and then rather than having to form each individual cookie, you make it like a tray bake and cut the cookies after it’s baked.

They worked a treat, and went down really well at the bake sale (I think the M&Ms on top definitely helped!) so the next time you have to bake something for a school bake sale, why not try these?!


200g butter (softened)
300g soft brown sugar
2 egg
1 tsp vanilla extract
350g self raising flour
2 150g packets of M&Ms


Preheat the oven to 180C / 170C Fan /325F and line a 30cm x 20cm baking tray with baking paper.

Mix the butter and sugar

Get your children to weigh the butter (200g) and sugar (300g) and add them to a large mixing bowl or freestanding mixer.

Beat them together using an electric whisk or the paddle attachment of your mixer until they are light and fluffy.

Add the eggs and vanilla extract

Get your kids to crack the eggs into a bowl. We usually break the eggs into a small bowl and have a separate small bowl for the shell, that way we tend to avoid getting shell in our mixture. Add the egg to your mixing bowl, along with the tsp of vanilla extract.

Mix together until everything is well combined.

Add the flour

Weigh the flour (350g), then add to your mixing bowl. Stir it together again until it is well mixed.


Add the M&Ms

Remove the bowl from your mixer if you’re using one then get your child to pour in the M&Ms. Stir together using a wooden spoon so they’re well dispersed.

Make the cookie bar

Pour the cookie mixture into your baking tray. Using a knife or the back of a spoon spread the dough out across your tray. If you need to, dip your spoon/kinfe in water to stop the mixture sticking to it.

Get your little ones to add some more M&Ms over the top of your cookie bar.


Bake the M&M cookie bar

Bake the cookie bar for 10-15 minutes. They’re ready when the cookie bar has started to turn golden brown and isn’t too gooey in the middle. (Ours was a little bit over baked, so bake yours until it’s less brown than ours!.)

Remove from the oven and leave to cool.

Once it’s cool, cut the cookie bar into 20 or so pieces.

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