Hard to look innocent when I've got cookie crumbs all over my face

My mom bakes a lot. When we were kids, and she'd end up with extra frosting, she'd usually make "cookies" by spreading the frosting onto graham crackers. It's delicious. She's always had cookies whenever she's had kids around, and last weekend was no exception. Just before we left, she put a bunch of frosted graham crackers into a ziplock bag for us to have on the drive home.

Mr M ate the most. As he was finishing the last one he asked me about them.

Mr M: Dad? Are these gran-cookies?

Me (thinking he'd said graham): Sure. You could call them that.

Mr M: Are they made out of grandkids?