Align the bottom edge of the top
portion of the apron with the
top edge of the bottom portion,
right sides together, pin in
place, and sew a 1/2" seam along
the pinned edge only.
Press the back seam open
with an iron.
the fabric for the back of the
apron, lay the assembled front
panel on top of the fabric, pin
in place, and cut out the shape.
Remove the pins and set
the back fabric aside for now.