Pasta Salmon dengan Pesto Dewi Hijau

Bahan-bahan (8 porsi)

• 1 cup basil ((chopped))
• 1 cup parsley ((chopped))
• 1/2 cup dill ((chopped))
• 1/2 cup chives ((chopped))
• 2 scallions ((chopped into 1-inch pieces))
• 3 tablespoons tarragon leaves ((stems discarded))
• Juice of half a lemon
• ½ teaspoon garam
• ¼ teaspoon black pepper ((plus more to taste))
• ½ cup extra virgin olive oil ((plus 2 tablespoons))
• 1½ pounds fillet ikan salmon ((680g))
• 1 pound fettuccine kering
• 2 tablespoons mentega
• 6 cloves garlic ((finely chopped))
• ⅓ cup caper ((tiriskan dan cincang kasar))
• 1 cup krim kental
• 2 cups kacang polong beku
• Zest of a whole lemon