Be gentle when mixing and shaping. Using cold butter and beef will make handling the beef a little bit easier, but you’ll still want to avoid over-mixing or being too rough while shaping the patties.
Salt the burgers after shaping. Instead of incorporating the salt into the burger patties, which can draw out moisture and make the patties dry, season the outside of the patties before grilling.
Sift flour, salt, and baking soda. Add to creamed mixture.
Stir in chocolate chips.
Dough should be crumbly - drop by spoonfuls.
Bake at 350º 8-10 min
Sauce
½c evap milk
½c sugar
⅓c margarine
1tsp vanilla
⅛c boiling water