I found this but it might not be the answer you're looking for :-
Is there an organic way to get rid of the dandelions in my lawn? I've tried getting them out by hand, but the roots break and there are so many of them! Boiling water has some effect on the ones in the paths, but I can't do that on the lawn.
The only way to get rid of dandelions is to hand-weed them out (pouring salt on the roots destroys the soil around the plant; vinegar also works, but kills everything else around it). So you may as well eat them. The roots, particularly if they are fat, are fantastic scrubbed and boiled; the young leaves are great raw with lardons or smoked fish and a little fried onion. The flowers are great dipped in batter, cooked in butter and eaten as miniature pancakes.
I consider the unopened flowerbud one of spring's greatest delicacies. Choose a plant with a flowerbud forming and just a slither of root attached; remove the leaves, fry gently in olive oil and perhaps dress with a little vinaigrette. Yes, it is fiddly, but think of it this way – your lawn has now become your supper.