01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper for easy release.
02 - In a large bowl, thoroughly blend rolled oats, almond flour, protein powder, ground cinnamon, baking powder, and sea salt.
03 - In a separate bowl, whisk eggs, almond milk, maple syrup or honey, applesauce, melted coconut oil, and vanilla extract until smooth.
04 - Add wet mixture to dry mixture, stirring gently until just combined. Fold in chopped roasted almonds.
05 - Transfer batter evenly into prepared pan. Sprinkle sliced almonds over the top.
06 - Bake for 22 to 25 minutes, until edges turn golden and a toothpick inserted in the center yields minimal crumbs.
07 - Cool completely in the pan. Use parchment handles to lift out, then slice into 12 squares.
08 - Store squares in an airtight container at room temperature for up to 3 days, or refrigerated for up to 1 week.