Garlic Scape & Arugula Pesto

Ingredients
2 c. arugula, packed tightly
2 c. garlic scapes, cut into 2-inch pieces and packed loosely
2 tbsp. parmesan, preferably freshly grated
¾ c. olive oil
¼ tsp. salt

Directions
Process all ingredients except oil in food processor, until coarsely chopped. Then, slowly add the olive oil as you continue to process the pesto. May be frozen up to a year.