Charmoula couscous

Ingredients

• 1/2 cup (120 milliliters) pistachios, shelled
• 2 1/4 cups (530 milliliters) water or broth
• 1/2 teaspoon (2 milliliters) salt
• 2 cups (480 milliliters) couscous
• 1 tablespoon (15 milliliters) olive oil
• 1/2 red onion, sliced thin
• 2 tablespoons (15 milliliters) charmoula (see recipe)
• Fresh mint leaves, for topping