The context of the following conversation is Casey needed flour and sugar to bake a cake.  Casey got the items together.:
Casey says I'm going to be baking a cake later..
The friend responds Are you going to use a mix or do it from scratch?.
Casey responds I'll make it from scratch..
The friend responds I've never made a cake from scratch..
Casey responds It's easy.  All you need is flour and sugar and a few other ingredients..
The friend responds Maybe you can show me one day..