Blend the date base

• Pit the dates and place them in a food processor with the almond butter.
• Pulse until a thick, sticky paste forms, scraping down the sides as needed.
• Fold in most of the chopped walnuts, keeping a few for the topping.

Press into the dish

• Line a small baking dish with parchment paper.
• Press the date mixture firmly and evenly into the dish.
• Chill while you melt the chocolate.

Melt the chocolate

• Melt the dark chocolate with the coconut oil in a saucepan over low heat, stirring until smooth.
• Pour the melted chocolate over the chilled date layer and spread evenly.
• Scatter the reserved walnuts and flaky sea salt on top.

Chill and slice

• Refrigerate until the chocolate is fully set.
• Lift out of the dish and cut into bars.