After looking at quite a few different sites I modified a recipe omitting baking soda and trace minerals (because honestly I have no idea what they meant by trace minerals).
2 tbs coconut oil
2 tbs xylitol
2 tbs Calcium/Magnesium powder
a couple dashes of sea salt
and I put some drops of peppermint essential oil in (not sure how many - a lot of sites say to use 20 but I definitely used less than that)
I haven't tried it yet, but hopefully it works well!