Preheat oven to 250°F and place parchment paper or silicone baking mat on sheet pan, spread oats, nuts, and flax meal evenly on sheet, bake for 20 minutes.
In small pot cook applesauce on medium low to reduce water content, about 5-7 minutes.
Add brown sugar, maple syrup, and butter, mix to combine.
Allow to simmer on low, stirring frequently until oats are done toasting in the oven.
Add cinnamon, vanilla, and salt, mix well.
Add warm toasted oats and stir well to coat evenly.
Gently into parchment lined sheet pan all the way to the edges to form a smooth, even layer.
Bake for 75 minutes at 250°F (do not overcook!) place on cooling rack, allow to cool completely, then break up and place in airtight container with apples and caramel bits.
