IMHO for mostly text data where you need a bit of custom formatting(e.g. cooking recipes) I would probably choose to go with AsciiDoc and then just adapt a rendering engine to make it look pretty. This way you get all the tooling and learnings that AsciiDoc has accumulated over the years and avoid having to spend time on a DSL and edge case detection that inventing a new standard will require.
Also the people writing recipes (my parents for example) are _most definitely_ not going to learn a DSL, they just want a text box where they can type whatever they want. If you care about having structured data, other humans with more structured proclivities need to do that for you.
