I saw this sidewalk paint somewhere, on some craft blog, but can't remember where....so I can't give the credit where it is due...sorry!
The Recipe is:
1/4 cup Cornstarch
1/4 cup water
food coloring of your choice
That's it! Super easy!
It dries like chalk and washes off like chalk too!
I'm trying out this new blogger editor, but it is confusing me....I'm having to fix the font every time I am on a new line....and the pictures seem, uh, I think I got it! Oh, maybe not.....might have to go back to old editor.