While looking at her biscuits, I remembered this (I haven't made anything like it myself, but I'll include a link).
Something like this. Don't add cocoa, but you can add a little more sugar instead; these recipes usually underestimate the amount. Also, it's not clear why spelt flour is used; just use regular wheat flour. The list of ingredients should also include lemon juice/acid; it's present in the recipe but forgotten in the annotation. I use corn oil, as it's odorless.