Traditional produce specific to the localities developed because these farms were cut off by deep snow for several months every year. Often these products were produced and stored at the farms.
Typical local cheeses are Tomme and Reblochon. The excellent Beaufort cheese hails from the Southern Alps and the creamy Morbier cheese comes from the Jura in the North. Goats cheese are made and sold directly by local farmers.
Have a look at the chamonix.net page on traditional food.
And you can see here the list of persons and stands that are present in the Chamonix Market.
Mondays - Les Houches: 8am to 12am
Tuesdays - Chamonix Sud (in season)
Wednesdays - Samoens: 8am to 12am
Thursdays - Saint Gervais: 8am to 12am
Fridays - Megève: 8am to 12am
Saturdays - Sallanches: 8am to 12am
Sundays - Argentière (in season): 8am to 12am
Don't forget that it might be difficult to park you car near the market squares.
And you can see here the list of persons and stands that are present in the Chamonix Market every Saturday morning.
Aosta - Tuesday: 8am to 4pm
Courmayeur - Wednesday: 8.30am to 1pm
Turin - Every day: 8.30am to 12pm and Saturday all day
Markets in Switzerland:
Martigny - Thursday: morning