01 - Line an 8x4 inch loaf pan with parchment paper, leaving an overhang for easy removal.
02 - Whisk together tahini, melted coconut oil, maple syrup, and salt in a medium bowl until smooth and creamy.
03 - Pour the mixture into the prepared pan and spread evenly with a spatula.
04 - Place the pan in the freezer while preparing the chocolate layer.
05 - Melt dark chocolate and 1 tablespoon coconut oil together in a heatproof bowl using 20-second microwave bursts or a double boiler, stirring until smooth.
06 - Pour the melted chocolate over the tahini base and spread evenly.
07 - Immediately sprinkle with toasted sesame seeds, nuts, and flaky salt if using.
08 - Freeze for at least 2 hours or until completely firm.
09 - Remove from freezer, lift fudge out using parchment, and cut into 16 squares. Store in a sealed container in the freezer and enjoy directly from frozen.