I am building an end table and I want to have the tapered legs rake and splay out at about five degrees in both directions. I want to uses M/T joints where the aprons meet the legs. This calls for either an angled tenon, or an angled mortise. Chopping an angled mortise would be easier. The shoulders on the tenons will have to be angled also to meet the raked and splayed legs.

I have forgotten how to do this at the drafting table. Can anyone help me out? I made one earlier, however, I had to settle for loose joints and glue blocks to secure the legs to the apron. I just can seem to get my head around this.