Marinette blushed, because he had a point.

"I know, but I was excited to get started, so I thought it'd be faster..."

Smiling sheepishly, she rubbed at the back of her head. "Anyway, um, let's do this. The first thing we need to do is mix the two sugars and the butter together... Could you do that if I put the bowl on your lap or would that be too messy?"