Personalised Birthday Letterbox Brownie Slab

Personalised Birthday Letterbox Brownie Slab

Ruby The Cake Artist


Made to order


The letterbox birthday brownie slab which you can personalise!



UK delivery only

  • Personalised Birthday Letterbox Brownie Slab, thumbnail 1 of 1

Product description

The letterbox birthday brownie slab which you can personalise!

The ‘Happy Birthday Brownie Slab’ - birthday brownies delivered straight to you, a friend or family member in our letterbox sized boxes!

The birthday brownie is our OG ultimate chocolate brownie smothered in milk chocolate, birthday sprinkles and a white chocolate happy birthday sign.

Our brownies are made in a kitchen which handles dairy, eggs, nuts and gluten. Your brownie box will come with a full list on ingredients information card and allergy advice.

Decoration may vary slighlty from the image in terms on sprinkle colours, shape and size.

We bake order fresh and and disapatch on the same day.


You can add a personal message to the brownie, no more than 6 words.


  • Personalisation available


Aprox 20ccm x 14cm x 2.2cm, aprox 700g

Made from

flour, sugar, eggs, unsalted butter, cocoa powder, milk chocolate, white chocolate, sprinkled and edible silver leaf.

Best before 7 days if kept at room temperature or 14 days if refrigerated.

Product code


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Overall product rating

4.6 out of 5

42 Reviews

UK delivery only


You have 28 days, from receipt of cancellable goods, to notify the seller if you wish to cancel your order or exchange an item.

Please note: goods that are personalised, bespoke or made-to-order to your specific requirements, perishable products and personal items sold with a hygiene seal (cosmetics, underwear) in instances where the seal is broken are non-refundable, unless faulty.

Read more about our returns policy.