Also known as: danish knotted stitch

This is a simple, stand alone knot. Danish knot can be used in plenty as a filing or scatter them around for decoration.

danish_knot_1      danish_knot_2
Fig 1: As shown, bring the needle out through A. Take the needle in through B, and out through C. The points B and C lies diagonally to A, making a triangle position.   Fig 2: Now, take the needle under the stitch A-B, from the right and without plucking the fabric beneath. Next, take the needle under the stitch A-B again. Loop the thread around the needle as shown. Pull the needle out. This makes a danish knot. 

Fig 3: To finish up, take the needle in just outside the loop to anchor the stitch.

A danish knot looks like this.