01 - 
                Preheat oven to 325°F. Line a large rimmed baking sheet with a silicone baking mat or parchment paper.
              
              
              
                02 - 
                Whisk egg whites in a large bowl until slightly bubbly. Add collagen peptides powder and whisk vigorously to incorporate fully, eliminating clumps by spreading on bowl sides with a spatula.
              
              
              
                03 - 
                Whisk in ground cinnamon and liquid stevia until evenly blended.
              
              
              
                04 - 
                Pour in brown rice cereal and rolled oats, folding gently with a spatula to evenly coat both cereals with the wet mixture.
              
              
              
                05 - 
                Spread mixture evenly on prepared pan. Bake at 325°F for 20 minutes.
              
              
              
                06 - 
                Stir gently to break up clusters and prevent burning along edges. Bake an additional 10 minutes.
              
              
              
                07 - 
                Stir again and bake for another 4 to 8 minutes until crunchy. Cool for 5 minutes before breaking large clusters. Let granola cool completely on pan prior to storing in an airtight container.