Ingredients
4 tablespoons (1/2 stick) unsalted butter, room temperature
2 tablespoons coarsely chopped fresh flat-leaf parsley
2 tablespoons coarsely chopped salt-packed capers (rinsed well and drained)
1 tablespoon finely grated lemon zest
1 clove garlic, minced (about 1 teaspoon)
Preparation
In a small bowl, stir together all ingredients with a rubber spatula until well combined.