Cook the clams to open them up and set aside in a pot (strain the water from the clams and set aside two cups).
Mince the garlic and put it in a clay (or stainless steel) pot with olive oil. Bring to heat.
When the garlic starts to cook, but before it starts to brown, add the flour. Sauté and add the broth from the clams (set aside earlier) and some more water, if necessary.
Let the sauce boil until it thickens and then dust with parsley and bring to boil.
Add the clams to the sauce, bring to boil again and serve immediately.