Combine all the wet ingredients (except the milk) in a blender and mix until combined.
Add the dry ingredients and blend until combined.
Add the milk and pulse in.
Place mixture in the fridge for a minimum 30 minutes.
Preheat oven to 175C/350F.
Place heaped tablespoons of mixture on the lined tray, at least 3cm (just over 1 inch) apart (this allows for spreading).Place tray in fridge for 15 minutes.
Bake in oven for 16-18 minutes. The biscuits will be slightly cracked on top.
Cool on tray for 5 minutes then transfer to a wire cooling rack.
The biscuits will firm up as they cool.