This unique cathedral window Christmas tree skirt will be the center of attention under the presents and the tree.
First, I cut the pieces for the fan using a variation of my “dresden” block. This is the “fold and sew” method. I cut the base pieces with green, red and white dotted fabric and the folded pieces with muslin. I made ten units of each one.

I join the units and I prepared ten fan sections like in the scheme. I sewed them, finishing in this way, the base of the tree skirt. I left one side open so I can place the skirt easily)
I cut a piece of muslin the same shape of the skirt tree and I placed it onto the table. I placed the base of the skirt over it. I cut the windows and I put them over the base. I secured the tree layers of fabric with pins and I applied the windows.
To make the binding, I cut 4 strips of red cotton and I sewed them together end to end to make one long strip. On the curved edge, I stretched the bias strip and I made a small crease in the concave area on the outside. I sewed, then fold over. With an invisible stitch, I sewed all around and I pressed.
I made a complete step by step tutorial for this project with the instructions and templates to cut the pieces. Check it out here.