A simple sauce of piquant green peppercorns, lemon juice and butter tops this seared salmon recipe. Green peppercorns come from the same plant as black ones, but are harvested before they mature. Typically packed in vinegar, they have a refreshingly sharp flavor. Look for them near the capers in most supermarkets. Serve with smashed red potatoes and sautéed kale. Download a FREE Make-Ahead Dinner Recipe Cookbook!