1
Beat butter until very light and fluffy — 3 minutes with an electric mixer.
2
Stir in garlic, herbs, lemon zest, salt, and pepper.
3
Taste — adjust seasoning. Add more herbs as desired.
4
Roll in plastic wrap to form a tight log. Refrigerate until firm or freeze.
5
Slice from frozen to top steaks, melt over vegetables, or toss through pasta.