what do you think would be the easiest and fastest granny square blanket?
Basic single color squares of double or treble (depends on what your comfortable with) stitches. It will be very plain.
Probably a single granny square (or rectangle) so you don’t have to sew them together
Yeah, one large continuous granny square.
I edited the title to make it more clear and added the need-ideas tags, I hope you find what you are looking for