Herbalife Chocolate Protein Mug Cake Recipe UK, 2 Minutes, High Protein

A warm, gooey chocolate mug cake in about two minutes, a single-serve treat with protein built in.

Quick answer: To make chocolate protein mug cake, combine 1 scoop f1 smooth chocolate with the other ingredients and follow the four simple steps below. It takes about 10 minutes, makes serves 1, and gives around 20g protein per serving using Formula 1 Nutritional Shake Mix Smooth Chocolate 550g.

Written by Rachel Orriss | Last updated August 2026

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Why you’ll love this recipe

  • Ready in 2 minutes in the microwave
  • Single serving, minimal washing up
  • Genuinely gooey in the middle

Ingredients (serves 1)

  • 1 scoop F1 Smooth Chocolate
  • 1 tbsp cocoa
  • 1 egg
  • 1 tbsp milk
  • 1 tsp baking powder
  • 1 tsp maple syrup

Method

  1. Mix everything in a mug until smooth.
  2. Microwave on high for 60–90 seconds until risen and just set.
  3. Rest 30 seconds, the centre stays molten.
  4. Top with a few chocolate chips if you like.

Nutrition (approximate)

Per serving: roughly 220 kcal and around 20g protein. Approximate only. It varies with your exact ingredients and portions.

Variations

Make it vegan

Add a spoon of peanut butter to the centre before cooking.

Another twist

Vegan: swap egg for 2 tbsp apple sauce + a splash more milk.

Switch the flavour

Not got Formula 1 Nutritional Shake Mix Smooth Chocolate? Any Formula 1 flavour works, try Vanilla Cream or Smooth Chocolate.

Extra protein

Stir in a scoop of unflavoured Protein Drink Mix (PDM) for roughly 15g more protein without changing the taste.

Tips for baking with Formula 1

Formula 1 doesn’t provide structure the way flour does, so keep the egg or banana in the mix, that’s what binds everything together.

For an extra protein hit without changing the flavour, add a scoop of unflavoured Protein Drink Mix (PDM).

Bakes made with Formula 1 come out a little denser than standard ones, that’s normal, and the trade-off is more protein and less sugar per serving.

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Frequently asked questions

How much protein is in chocolate protein mug cake?

Around 20g of protein per serving, and roughly 220 kcal. Exact figures vary with your milk, toppings and portion sizes.

Can I make chocolate protein mug cake vegan?

Yes, swap any eggs for a flax egg (1 tbsp ground flaxseed + 3 tbsp water per egg) and use plant-based milk.

Can I use a different Formula 1 flavour?

Yes. This recipe uses Formula 1 Nutritional Shake Mix Smooth Chocolate for flavour and protein, but any Formula 1 flavour works, Vanilla Cream and Smooth Chocolate are the most versatile.

How should I store chocolate protein mug cake?

Best enjoyed fresh, but you can keep it covered in the fridge for a day.

Is this good for meal prep?

Yes. It’s easy to make ahead in a batch, so you always have a high-protein option ready to go.

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