Creamy Arugula Soup

Ingredients (for 4 servings)

• 1 tbsp — Olive Oil
• 1 whole — yellow onion
• 2 whole — celery
• 3 clove — Garlic
• 1 lb — Potatoes
• 4 cup — vegetable broth
• 1½ tsp — Sea salt
• 3 cup — arugula
• ½ cup — coconut milk
• to taste — black pepper