i changed the ingredients to metric and instead of 90g of just chocolate chips, i used 25g of walnuts and 65g chocolate! i made a few other changes, including lemon juice instead of apple cider vinegar. i also used an avocado and walnut oil mix instead of olive. as for pastry flour, i just used regular fine wholemeal flour, and instead of the flaxseed mixture i used two eggs. i also didn't have any maple syrup, so used golden syrup and honey instead.
these came out great! i definitely didn't fill the cups enough though and ended up with 24 muffins but that's my own fault lol :)