I like this method
https://www.youtube.com/watch?v=O-ru_WZmLUY
Also another similar to Stitchnrippers' first youtube video - except I prefer having the top and batting the same size, the backing 1/4" - 1/2" larger all around. You then join the backing and on the front, cover the join with bias binding of 1 -2", which doesn't need to be cut on the bias, BTW. Join in rows first, then join the rows. Don't know if you will find a video of this method, but there are so many on Youtube - must be one.