This Broccoli Celery Soup Tastes Like Heaven! Easy To Make, Healthy and Delicious

Ingredients:

500 g broccoli
300 g celery
200 g peas
200 g potatoes
1 medium onion
2 cloves of garlic
300 ml milk
30 g oat flour (or all purpose flour)
2 tbsp olive oil
Salt and black pepper as needed