Seitan pepper steak with vegan purple potato au gratin


  • 2 Pepper Protein Steaks
  • 4 purple potatoes
  • 200 g cashew nuts
  • ¾ l water
  • ½ tbsp vegetable bouillon
  • 1 tbsp paprika powder
  • 1 tsp coconut blossom sugar (Amanprana Gula Java Brut)
  • Fleur de sel
  • Herb mix (Amanprana ORAC Botanico Mix with chilli)
  • Walnut oil (Amanprana Perigord extra virgin olive oil)
  • 1 clove of garlic

Preparation of seitan pepper steak with vegan purple potato au gratin

  1. Place the cashew nuts, some water, the paprika powder, a dash of salt and pepper, the vegetable bouillon and the coconut blossom sugar in a mixer and blend at the highest setting.
  2. The mixture must be creamy but liquid, and if it is a little stiff then add some more water.
  3. Season it with a little herb mix.
  4. Preheat the oven to 250 °C.
  5. Remove the seitan from its packaging and place in an oven dish.
  6. Drizzle with walnut oil and scatter with a little herb mix, fleur de sel and pepper.
  7. Cut the purple potatoes into fine slices and layer on the seitan, alternating with the sauce.
  8. Ensure that the final layer is sauce.
  9. Bake in the oven for around 40-45 minutes.
  10. Test whether the potatoes are cooked and serve. Bon appétit!

Tip of Stefano:

The purple potato: what is it and what does it taste like?

They might not be that common yet, but the purple potato is taking over the world. They originally came from Peru and Bolivia and today are becoming ever more popular in Western cuisine. As the name suggests, both the peel and the flesh are purple. There are different types of purple potato but the taste is generally sweeter than normal potatoes and has a nutty flavour. Another advantage is of course the purple colour, making them a real eye-catcher.

The purple potato is not just colourful, it is healthy too

The potato is purple in colour because it contains a great deal of anthocyanin, which acts as an antioxidant and is very beneficial to your health. The purple potato contains more antioxidants than standard potatoes and is also packed with potassium. That makes the purple potato perfect for a side dish or as part of an oven dish, such as in the recipe below.

Stefano Vicinoadio kok en fan van Bertyn

Stefano Vicinoadio

Who is Stefano Vicinoadio? Here at Bertyn we got to know him at an organic fair in Germany. We immediately hit it off and it turned into a great working relationship. Stefano is actually a photographer, and it is his passion. But his love for cooking has resulted in the most delicious recipes... together with great photos.

Stefano describes himself as colourful, loud, a vegan, a friend, a discoverer, a digital nomad and straightforward.Stefano changed tack and started to eat and live a healthy vegan lifestyle His life took a wholly different course when he became very ill. At the age of 33 he was going with all guns blazing, but he didn't spare a thought for his own health - he smoked, drank a lot, worked up to 16 hours a day and drank around two litres of coffee daily. Then he developed two serious hernias, as well as being very overweight. He realised that he could not continue this way and decided on a complete turnaround. He quit drinking and smoking and slowly changed his diet, until he finally went almost completely vegan.Vegan, a step further than vegetarian Stefano's recipes are all vegan. A vegan eats no animal products whatsoever, taking it a step beyond vegetarianism. Vegans don't eat eggs, dairy products or honey. These recipes by Stefano will prove to you that there's still a great deal left to work with. See the recipes and try them out for yourself!

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What fans say about Bertyn

Fan: Jason Wrobel

Jason Wrobel

Raw vegan Chef and author

“Vegan products that meat eaters love! Seitan is No. 1 It’s wheat meat.” “My No. 1 substitute is seitan. Seitan is a fantastic substitute for meat in recipes such as sandwiches, stews or stir-fries. The possibilities are endless”


The possibilities with the Instant Protein Vegan Mix - 3x 90 grams of Bertyn Seitanburger are (almost) endless! Watch all the videos of our recipes with this protein mix and get inspired to make vegetarian (or vegan) high-protein dishes for you and the whole family!

View all videos