if a recipe for aple sauce cost for 1 killogram for apples how much apples would you need

Did you mean to write "calls for" instead of "costs"? You would need one kilogram! :)

You'd need one kilogram or 2.2 pounds of apples.

To determine the amount of apples needed for a recipe, you would typically look at the specified weight or quantity mentioned in the recipe. In this case, the recipe calls for 1 kilogram of apples. When following the recipe, you would need to purchase or gather approximately 1 kilogram (or 2.2 pounds) of apples to make the apple sauce.