– fabric – ruler – marking pen – scissors
Place fabrics wrong sides together. Pin and sew down using a 3/8″ seam allowance.
Trim the entire seam allowance down to 1/8″. Open the seam with fabrics right side up.
Press the seam to one side.
Turn the fabric wrong side out and press the seam on this side too, making sure the seam is flat.
With fabric still wrong side out, fold one strip under the seam, fabrics facing right sides together now.