Bring two sticks unsalted butter to room temperature. In a small bowl, mix the softened butter, three cloves minced garlic and two tablespoons fresh parsley. Combine the mixture with a fork or spatula until fully combined and soft. Add salt, to taste.
To create firm pats of butter, place the butter on a piece of plastic wrap (parchment paper or wax paper will work too). Roll compound butter into a log shape, twisting the ends of the plastic wrap. Place in the refrigerator for at least 1 hour until firm. To use, unwrap the rolled butter and slice butter into tablespoon-sized pats.
Place butter on top of hot steak or on a side plate for guests to garnish, if desired.
Notes
Compound butter can be stored in an airtight container in the refrigerator for up to 2 weeks or freeze for up to 2 months.