Mitered Corners Redux

This tutorial from Sew4Home gives very good instructions and I thought this was finally the one that was going to work for my project. But like the first ones I tried, I realized this technique would work only if the sides have been hemmed, as opposed to the raw edges I have.

This sample was made for our Citrus Holiday napkin project, but you can use it anytime you need a narrow hemmed corner.

1. Along all edges, turn right side under ¼" and press well.
2. Turn another ¼" all around and press well.
3. Unfold both ¼" turns so your fabric lays flat. You should be able to see the fold lines of both turns.
   
4. Fold the corner at a 45˚ angle so the point of the corner lines up with the intersection of the second set of fold lines. Press.
   
5. Fold corner a second time, again at a 45˚ angle. Press.
   
6. Re-fold your first ¼" turn along its original fold line and press well.
   
7. Refold along your second ¼" fold line and press. If you've been careful with your measurements, turns and pressing, this second re-fold will create a diagonal line where your two finished edged meet, making a neat split corner.
   
8. Edgestitch around all folded edges, back-tacking two to three stitches at each corner. Make sure your back-tacking crosses over the split corner to help this split say closed.
   
9. Press from the front to finish.