Watercress and Pistachio Pesto | RICARDO

Ingredients

• 6 cups (1.5 litres) packed watercress (2 bunches)
• 1/2 cup (125 ml) pistachios, toasted
• 1/2 cup (125 ml) grated Parmigiano-Reggiano cheese
• 4 teaspoons (20 ml) lemon juice
• 2 cloves garlic, peeled
• 1/2 cup (125 ml) canola oil, approximately
• Salt and pepper