01 - Line a 9x5-inch loaf pan with parchment paper, leaving overhang on sides for easy removal.
02 - In a medium bowl, combine almond butter, melted coconut oil, maple syrup, vanilla extract, and fine sea salt. Whisk until smooth and fully blended.
03 - Fold in half of the chopped walnuts until evenly distributed.
04 - Pour mixture into prepared pan and spread evenly with a spatula. Sprinkle remaining walnuts on top, gently pressing them into the surface. Optionally add flaky sea salt.
05 - Freeze for at least 2 hours or until completely firm throughout.
06 - Remove from freezer, lift out using parchment overhang, and cut into 16 squares. Store in airtight container in freezer and enjoy straight from frozen.