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Happy Birthday Slab

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Regular price £20.00
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The ‘Birthday Brownie Slab’ 🎉 

Birthday brownies personalised & delivered straight to you, a friend, or loved ones!


The birthday brownie is the OG ultimate brownie or blondie smothered in dark chocolate, birthday sprinkles and a happy birthday edible message in your choice of colour!


Add a little note when you order to add a special birthday message inside the box too.


Size equivalent of 6 brownies. Each slab is roughly 17cmx17cm

Suitable for: Vegetarian and Halal
Allergy Advice: Gluten, Soy, Eggs, Milk 
Ingredients: Brown sugar, white sugar, flour, white chocolate, dark chocolate, egg, vanilla, salt

The bigger the brownie the gooier. Each individual gooey brownie & blondie is roughly 7cm x 3.5cm.

All of our products are made in a kitchen that uses nuts & gluten, we use separate utensils for each product however we cannot guarantee a trace free product.

If you have picked a pre-order date we will make sure the box is shipped out in time, but we cannot guarantee delivery on this day as we are unable to control any external factors such as delays by Royal Mail.

Product reviews

Customer Reviews

Based on 16 reviews
Rebecca Smith
Birthday slab

Pre ordered a birthday brownie to arrive 9th March, arrived two days early and was hard and dry. Such a shame as previously had a mix box which was 10/10. Wouldn’t recommend the happy birthday slab.

James Dawe

Best Birthday Cake ever!

Marilyn Allnutt
Happy birthday slab

Gift for my son who was thrilled with it and stated that it is the best brownie he has ever tasted.

Just as Tasty as Ever!

I've ordered from here a few times for both myself and as gifts/pick-me-ups for family and friends and we are NEVER disappointed! I recommend Gimme Brownies to every sweet toothed person I know. The birthday slab was for my partner and they loved it! So delicious and the dark chocolate was really rich and smooth. I will 100% be ordering again :)


Gooey, flavoursome bites of wonder, really lovely and great communication from the seller. Thank-you!