Stack size?

[Atijaf]

When Creating a new recipe, you get to choose the amount of the result;

 

//                                               This
GameRegistry.addRecipe(new ItemStack(Blocks.stone, 10), new Object[] {"CCC","CCC","CC ", 'C', Blocks.cobblestone});

 

I want to retrieve the number 10 from within the even "ItemCraftedEvent", but have run into a wall.

 

@SubscribeEvent
public void onCraft(ItemCraftedEvent event){
    int amount = event.crafting.stackSize;//This should return 10 right?  Returns 0...

 

Amount is 0 when it should be 10.  Am I missing something?