Yes. That is what it’s called.
It is salty and umami and delicious. I softened the butter and combined it in the food processor. I used crushed pork rinds instead of bread crumbs. It gives it a nice texture, but I suppose you could omit them if you want a smoother paste.
http://www.food.com/recipe/patum-peperium-the-secret-is-out-gentlemans-relish-228778