I am making 2 face frame vanities (Door, 3 drawers and the false drawer. I used a 1/4 inch upcut bit in a router with template guide along with a jig I made to create the mortises. I created the loose tenons from 1x1.5x.25 pieces of wood made from the same maple being used for the face frame.
The first one in is now clamped up and glue drying, using titebond extend wood glue. This stuff is really liquid compared to other titebond glues. It drips everywhere. Hopefully it works well. I am hoping the tenons give it the surface area needed to hold it all together.