I made a version of these for the first time the other day and they were delicious!
I combined a couple of tweaks to make a Jaffa flavor - i added zest of an orange with the sugar and almonds and i reduced the flour to 130g and added 20g of cocoa.
I used Herseys cocoa which has quite a strong flavor and the biscuits came up very chocolatey and almost over powered any orange flavor. But they reminded me of Byron Bay Cookies in terms of texture,they were so deliciously crumbly.
I will be making these on a regular basis.