Step 1

Preheat oven to 325°F. In a large bowl, whisk egg white until frothy; whisk in brown sugar, maple syrup, and oil. Add oats, coconut, almonds, pepitas, flaxseeds, almond flour, cinnamon, and salt; stir to combine.

Step 2

Firmly press mixture evenly into bottom and all the way to edges of a parchment-lined 9-by-13-inch rimmed baking sheet or pan.

Step 3

Bake, rotating once, until golden and crisp, about 45 minutes. Let cool completely; break into pieces. Store in an airtight container at room temperature up to 1 week or freeze up to 3 months.