Line an 8 or 9 inch square pan with foil and butter lightly or grease with cooking spray.
In a large saucepan over medium high heat, combine butter, brown sugar and evaporated milk. Bring to a full boil, stirring frequently. Turn heat to medium and cook for 10 minutes, stirring often.
Remove from heat and stir in maple flavoring, vanilla extract and salt. Using a stand or electric mixer, beat in powdered sugar for about 2 minutes until smooth.
Spread in prepared pan and allow to cool completely before cutting into squares.
Store in a cool place in an air tight container.
Recipe by Crumbs and Chaos at http://www.crumbsandchaos.dreamhosters.com/2014/12/maple-fudge/