Roughly crush the peppercorns into small pieces.You can do this by placing the peppercorns in a sandwich bag and gently bash it with a rolling pin. You could also do this in a pestle and mortar.
Add oil (or butter) to the frying pan and heat on a medium heat.
1 tsp Oil or Butter
Add diced onions, salt and crushed peppercorns to the frying pan and stir for 2 to 3 minutes or until the onions have softened.
½ Red Onion, Salt, 2 tbsp Crushed Black Peppercorns
Add water and stock paste to the onions and allow the sauce to simmer and thicken. This will take an average of 8 minutes, gently stir the sauce and it will thicken eventually.
100 ml Water, 10 g Stock Paste
Stir in the creme fraiche, turn the heat off and serve.
75 g Creme Fraiche
Video
Notes
Try Different Peppercorns!!
I usually freshly crush black peppercorns just before making this sauce as this gives me a rich peppercorn flavour. Alternatively, you can use pre-crushed black pepper or black pepper powder to save you some time.You can of course use white peppercorns, pink peppercorns or even a combination of all three for an intense flavour. When I want to do this, I get a pack of mixed peppercorns with all three types in one pack.