01 - Line an 8x8 inch square baking dish with parchment paper, allowing overhang on sides for easy removal later.
02 - In a mixing bowl, combine almond butter, melted coconut oil, maple syrup or honey, vanilla extract, and salt. Whisk until completely smooth and fully incorporated.
03 - Pour the mixture into the prepared baking dish, using a spatula to spread it evenly across the bottom.
04 - In a separate small bowl, mash raspberries with lemon juice, lemon zest, and maple syrup or honey until reaching a saucy consistency while retaining some chunks for texture.
05 - Distribute the raspberry lemon mixture over the almond base in dollops. Run a skewer or knife through the layers in swirling motions to create a marbled effect.
06 - Sprinkle sliced almonds and additional lemon zest evenly over the surface.
07 - Place the dish in the freezer for a minimum of 2 hours, or until the fudge is completely firm.
08 - Lift the fudge from the dish using the parchment paper overhang. Let stand at room temperature for 5 minutes to soften slightly before cutting into squares.