Line a 9x13 baking pan with parchment paper. Set it aside.
Place the sugar, light brown sugar, butter, and evaporated milk in a medium saucepan over medium heat and stir until combined. Continue stirring and bring to a boil, then let it boil for 5 minutes, or until the sugar has dissolved completely, while stirring to keep the sugar from scorching on the bottom of the pan. If you have a candy thermometer, heat the mixture until it reaches 235°F.
Lower the heat to low, and add the white chocolate chips and maple extract. Stir until the chocolate chips have melted. Stir in the marshmallow creme until it has melted.
Remove the mixture from heat, and stir in the pecans.
Pour the fudge into the parchment-lined pan, and spread it evenly and quickly. Let the fudge rest on a cooling rack for 1-2 hours or until it is set and cool. Slice and serve at room temperature.