Draw a line on both borders
Fold and press the edges with an iron
Position the pressed edge on top of the 2nd mitred line,
then apply a tiny amount of Elmer’s Glue along
the inside edge and press flat
Leave open a 1/4 of an inch from the edge. The pin indicates where 1/4 inch is .You leave this 1/4 inch open to attach the centre of the quilt top later on (blocks)
Stitch the seam with a slightly smaller stitch making sure that the tension does not stretch or warp during stitching
Cut away the excess fabric making sure
that you leave a 1/2 inch seam allowance
Gently release the glue by tugging the seam open and press flat
Turn to the right side and check that everything is positioned correctly and is nice and flat
For those of you making Block 5 of my BOM Hearts Desire, continue reading: We are now referring to the curvy applique detail which was added to the base border and was left pinned back during mitre-ing. I purposefully did not mitre the applique with the seam because it creates too much bulk if you do. For absolute precision, I prefer to mitre overlay appliqué separately.
Follow the pics below for a visual on how I do this
Notice how the applique is pinned back? Now that you have mitred the border fabric, go ahead and mitre the applique too
Remember to leave a 1/4 inch seam allowance just as you did with with backgrounbd border fabric- you will need it when adding the centre quilt
Mitre the background border fabric
Mitre the applique 'overlay' next and when both are neatly mitred, then you are able to position the applique basket over the mitred seam. And your corners will all look something like this.