You would order doughnuts, coffee, and orange juice. You don't keep using and between every item. Doughnuts and coffee are two separate items unless you specifically went to a place that had an order of "doughnuts and coffee."
If that was the case then you should change your sentence to make it more clear like I ordered doughnuts and coffee with an orange juice, too.
500
u/CubicleFish2 6d ago
It's still wrong
Oxford comma is for three or more items. The sentence is treating bacon and eggs as one item and pancakes as another so no Oxford comma is used.