Deadly dovetails ..

 Mill the board, cut it in half and label pins and tails.

 Cut a shallow rabbet on the inside of the tail board to accept the pin piece later.

 Layout the tails and saw (that's apparently a tricky part for me).

 Chisel out the waste using a guide block.

 Opps!  I looks like I pulled out a tooth.

 Lay out the pins with the tails.  Use the shallow rabbet to line up the boards.

 Chisel out the waste where the tails will go using a guide block again.

On the left, the first set.  On the right, the second set.