Cut the butter into small pieces in a mixing bowl and let it soften.
During this time, chop the onion and fry it with a little oil. As soon as they have turned a nice brown color, remove them from the heat and let them cool down.
Sprinkle the masala spice, paprika and curry powder evenly over the butter and mix well with a hand mixer. Now season with salt and pepper and stir again. Add the fried and cooled onions and fried onions and stir into the butter with a spatula.
Finally, pour into a suitable container and let it steep for 1 - 2 hours in the refrigerator.
Tastes excellent on fresh baguette or with grilled meat.