Preheat the oven to 350 degrees F. Line an 8x8 pan with parchment paper.
Put the vegan buttery spread, sugar, and maple syrup in a bowl and mix together on medium speed.
Add the gluten free flour blend, gluten free oats, and salt and mix on low speed.
Stop the mixer and add the cranberries, and stir them in with a spoon.
Spoon the batter into the prepared pan and use some waxed paper to press it firmly and evenly into the pan.
Bake at 350 degrees F for about 25-27 minutes, until the top is golden brown. Allow to cool for about an hour.
Use the parchment paper to remove the slab from the pan and transfer to a cutting surface. Slice the bars with a sharp knife.
Notes
Store leftover bars in an airtight container. They should stay fresh for 3-4 days.You could freeze these if you like. Place in a freezer safe container and store in the freezer for up to 3 months.If you aren't gluten free, you can use regular all-purpose flour.