Red Velvet Choco-Raspberry Protein Cake

Since Optimum Nutrition are celebrating their 30th Anniversary, we thought it would be nice to honour this and make them a cake! :)

This colourful creation is Red Velvet Choco-Raspberry Protein Cake, and features ON’s Gold Standard Whey in two of their top-selling flavours: Strawberry and Chocolate. Plus a secret ingredient... beetroot. Not so secret after all, then.

This cake looks really naughty – it actually tastes naughty as well (I tested it, because someone had to!), but it’s actually a pretty clean, lean recipe, as far as cake goes, and super chocolatey. Plus, that reddish hue really POPS!

So, here goes:


 (Serves approx. 8)


  • 120g (approx. 4 scoops) of ON Strawberry Gold Standard Whey
  • 120g (approx. 4 scoops)of ON Chocolate (Milk or Double Rich) Gold Standard Whey
  • 200g of ground almonds
  • 120g of high quality cocoa powder/cacao
  • 1 tsp of vanilla essence
  • 2 large eggs, whisked
  • 50ml of coconut milk
  • 3-5 tbsps of beetroot juice
  • 50g of melted, dark chocolate
  • 170g of coconut sugar, or an alternative such as xylitol or erythritol (try the Sukrin brand)
  • A handful of fresh (or frozen) raspberries, scattered throughout the mixture
  • A few raspberries, for decoration, plus a dusting of cocoa powder


  • 360g of soft cheese, such as Quark or Philadelphia
  • 90g (approx. 3 scoops of ON Strawberry Gold Standard Whey
    2 tbsp of Sweet Freedom, or a few drops of liquid stevia, to keep the carbs down
  • 2 tsps (thereabouts) of beetroot juice (optional)
  • A dash of almond milk, if needed


  • Pre-heat the oven to 160 °C/140°C Fan/Gas Mark 3. Grab a 9” silicone baking pan (or a spring-form pan), and lightly grease the edges with coconut oil.
  • Mix all the cake ingredients* together in a large bowl, scattering the raspberries in last, and bake in the oven for about 45 minutes, until set. Allow to cool COMPLETELY.

*Add enough beetroot juice to turn the mixture a rich, red-brown colour. It won’t taste of beetroot – honest!

  • Carefully slice across the diameter so that you have two halves.
  • To make the frosting, whisk together all the ingredients, adding a touch of beetroot juice to make a raspberry pink colour. If you’re an alpha male and feel this would be a test of your masculinity, skip this step (the fact that you’re baking in the first place suggests you have no qualms with said masculinity). Ladies, proceed as desired.
  • Spread part of the frosting between the two cake halves; spoon the remainder over the top. If you want a runnier type of frosting for the top (as pictured), whisk in a little almond milk.

Scatter raspberries over the top, and dust with cocoa powder! Voilà.

Happy Anniversary Optimum Nutrition!


Check out our Optimum Nutrition Anniversary offers here >

About the Author

Zoë is a qualified nutritionist; she holds a BSc in Human Nutrition (Hons), and is currently working towards her certification in sports nutrition, awarded by the ISSN. What you eat can greatly impact your health, well-being and exercise performance. Therefore, Zoë is here to support you in reaching your goals by helping you to make informed dietary and supplement choices.
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