Using homespun cotton, I cut two sections of navy plaid in 19"x 36 1/2" rectangles. I then sewed them together, using a french seam to seal any frays, creating a 19"x 72" rectangle.
Next, I hemmed the edges.
Then I sewed a long running stitch down the middle (without backstitching to secure it) and pulled one thread to create my ruffle. I wanted the length of my scarf to be 36", so it's got a lot of ruffle.
Next up was applying my vintage thrifted lace. I used a multi-stitch zig zag to attach the lace, to the center gather, with nearly invisible stitches. One seam down the middle and two more - one along each edge. *Note: I used scalloped lace which requires you to line it up evenly on both sides before stitching. It would be much quicker to use a straight trim.