Heat oven to 180 degrees. Line a sheet tray neatly with parchment paper.
Add strawberries and maple syrup to a blender and blend until smooth. Spread strawberry mixture on the parchment in an even layer, paying attention to the edges of the pan. Place in the oven to dehydrate for about 2 hours, until tacky yet dry. Start checking after 1 hour 45 minutes — dehydrating time will depend on how juicy your strawberries are.