Heat oil in a pan, add Nigella seeds(Kalonji) and fry them for 15 seconds.
Then add chopped onions to the pan and saute them until they turn translucent.
Next, add the Turmeric powder, Garam Masala/Curry powder, minced ginger, minced garlic and salt
Add 1-2 tablespoons of water to the pan when you add the dry spices above. This helps to prevent them from sticking to the pan and burning.
Cook the spices for 1-2 minutes.
Now add the Maille Dijon Originale along with some water.
Mix and cook for 4-5 minutes or until it's thick and creamy.
Once the sauce starts to bubble and releases a nice aroma, add coconut milk.
Be careful to not overcook the coconut milk as it curdles on high heat
Switch off the flame