Dulce Lugar is a family-run bakery in downtown El Calafate. You'll see a lot of alfajores and chocolates for sale in shops downtown. It is important than you do not buy them. Go to this institution instead and buy alfajores made IN HOUSE that day.

Chocolate and alfajores are made with Patagonian berries - try calafate and raspberry for something hyper local. You can also buy dulce de leche, when in Argentina there is always dulce de leche.

Buy some for your picnics to the glacier and as presents for friends and family back home.