Combine the softened butter/ pasteurized cream, chopped herbs, minced garlic, and fresh lemon juice in a mixing bowl. Mix thoroughly until the ingredients homogenize into a single mixture. I have used a blender for this, and I've done it by hand; both methods work, but if you mix by hand, prepare for serious work.
In the end, add salt and pepper to taste and blend/mix again for the flavors to distribute equally and balance.
When you are all done, use a spoon to remove the mixture from the blender and place it into a suitable container. You can also use plastic wrap, place it onto it, and shape it into a ball.
Let the butter chill in the fridge for about an hour before using it. This will allow for the flavors to meld and settle into each other.
Enjoy your butter with some recommendations from the article!