You are screwing up this language in a disgusting way.
OK, America, it's like this. You keep saying biscuit. What you are talking about is something like this.
They're probably quite nice. They're probably lovely. But they're not FUCKING BISCUITS!
These are some sort of cake, or scone, or barm or something.
THESE are biscuits. Small, hard baked goods. They're excellent with tea, which you'd know if you hadn't thrown it all away a few centuries ago.
If your gran can't give you a biscuit, what the hell is she going to give you?