Step 1: Cut wood
Edges a sanded, holes drilled for the dowels, glued and clamped.
Step 2: Cut out waste wood
Pencil outline the strainer.
Scroll saw out the strainer hole.
Router the edge to match the inside corner of the strainer. Note how the strainer sits in to the board and is flush with the chopping surface.
Step 3: Finish up
Sand board with the grain.
Condition wood with butchers block oil.
Go chop stuff.