Medium small onion
you can leave it out if you dont like/dont have
Bring to boil wax beans with onion, garlic and salt
Once beans tender, mix in roux, cook 5 more mins
Some ppl like it with added sour cream (i do), some ppl find it enough just with the roux
Serve with sausage!
On a non stick pan, fry flour and oil. Pour in water/milk and cook til thickened