TACO MAKING TIME!

Simon slipped his Arithmancy notebook into his bag and waited for Hadley to ask them the question. When she did, he wracked his brain, searching for an answer.

One ingredient that was in tacos.

Hmmm....

Since beef and taco shells had already been mentioned, Simon shot up his hand. "Queso? Cheese, Professor?" he asked. He was pretty sure that cheese was in tacos because all the tacos that he had eaten had cheese in them. But perhaps cheese didn't need to be in tacos. He'd see.