Garlic Butter Sauce

Bahan-bahan (8 porsi)

• 1 cup butter (softened)
• ½ cup finely minced fresh Italian parsley
• 4 cloves garlic (minced)
• 1 lemon (zested and halved)
• ¼ -½ teaspoon red pepper flakes
• ¼ teaspoon freshly ground black pepper