Rainbow Heart Brownies

These brownie hearts are great fun to decorate and guess what… they’re flourless too!

about 6 - 8 Portions

Medium 60 Minutes



For the recipe  Rainbow Heart Brownies

For the Brownie:

150 g Dr. Oetker 72% Extra Dark Chocolate
200 g Unsalted butter
150 g Light Brown Sugar
3 Medium Eggs (beaten)
10 ml Dr. Oetker Madagascan Vanilla Extract (2 tsp)
15 g Dr. Oetker Fine Dark Cocoa Powder
5 g Dr. Oetker Baking Powder (1 tsp)
150 g Ground Almonds
100 g Dr. Oetker Milk Chocolate Chunks

To Decorate:

400 g Dr. Oetker Vanilla Buttercream Style Icing (1 tub)
Dr. Oetker Red Extra Strong Food Colour Gel
Dr. Oetker Orange Extra Strong Food Colour Gel
Dr. Oetker Yellow Extra Strong Food Colour Gel
Dr. Oetker Green Extra Strong Food Colour Gel
Dr. Oetker Blue Extra Strong Food Colour Gel
Dr. Oetker Violet Extra Strong Food Colour Gel




For the Brownie

Preheat the oven to 170°C (150°C Fan, Gas Mark 3). Grease and line a 20cm x 30cm baking tray.


Break the Extra Dark Chocolate into pieces and place in a heatproof bowl, add the butter. Place in the microwave and heat for 1 minute and stir, continue to heat in 10 seconds bursts, stirring in between bursts until the mixture has melted, leave to cool for 5 minutes.


Stir the sugar into the melted chocolate mixture and whisk in the eggs and Vanilla Extract until you have a thick and glossy mixture. Sift the Cocoa Powder and Baking Powder on top and add the ground almonds. Gently fold the mixture together and finally add the Chocolate Chunks and stir into the mixture.


Pour the mixture into the prepared baking tray and smooth the top. Bake in the oven for 30 minutes until risen and crusty on top, the middle of the brownie will be slightly soft it will firm up as it cools. Leave the brownie to cool completely in the tin before removing. 


To Decorate

Divide the buttercream into 5 bowls; you will need to decrease the amount of buttercream in each bowl. Add Red Colour Gel to the bowl with the most buttercream in; add few more drops colour gel until you have a bright shade of red. Repeat the step adding Orange Colour Gel to the next fullest bowl, then yellow, green, blue and finally purple. Cover your bowls of buttercream in cling film to stop them drying out. 


Cut your tray of brownie into heart shapes using a heart shaped cutter about 10 cm in height – if you do not have a heart cutter you can cut them free hand using a stencil made of grease proof paper. 


Place your red buttercream into a piping bag fitted with a small star nozzle – if you do not have a star nozzle cut the end of your piping bag to create a ½ cm hole, you can pipe buttercream blobs onto your brownies. 


Pipe a red boarder around the edge of each brownie heart. Then repeat with the orange buttercream, piping inside the red boarder. Then repeat with the yellow, green and blue. Finish with the purple buttercream in the centre of the heart. 


Your brownie rainbow hearts are now ready to serve and enjoy. They can be stored in an airtight container for up to 3 days.   

Personalise your brownie hearts with a message using Dr. Oetker Chocolate Letters and Numbers.

Replace the ground almonds with plain flour.  

If you don't have any colours, why not cover your brownie hearts in buttercream and create rainbow stripes with coloured sweets! 

Use the brownie cut off to make chocolate cake pops, simple crumble the brownie into a bowl, stir through some buttercream and form into balls. Leave to set in the fridge for 30 minutes and then dip into some melted chocolate! 

Nutritional Information for the recipe Rainbow Heart Brownies

Per Serving Per 100 g / ml
Energy 3747 kJ
895 kcal
1951 kJ
466 kcal
Fat 60.79 g 31.66 g
Carbohydrate 75.61 g 39.38 g
Protein 10.91 g 5.68 g
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