Preheat oven to 375 degrees F (190 degrees C).
Line the bottom of a lined baking tray with the Matzo (8 piece), breaking up pieces if you need to fill in any gaps.
Place the Unsalted Butter (1 cup), Sea Salt (1 pinch), and Brown Sugar (1 cup) in a saucepan over a medium heat, stirring constantly until melted together.
Bring the toffee mixture for around 3 minutes, continuing to stir. Working quickly and carefully, pour the toffee over the matzoh.
Place in the oven and bake for 15 minutes. Keep an eye on it in case it begins to burn.
In the meantime, roughly chop the Dark Chocolate (200 gram).
Roughly chop the Salted Shelled Pistachios (1 cup).
Remove the tray from the oven and evenly sprinkle over chopped chocolate. Leave it to melt for about 10 minutes.
Evenly spread the melted chocolate with the back of a spoon.
Evenly sprinkle over chopped pistachios. Place in the refrigerator to set, about 20 minutes.
Once the toffee and chocolate have set, use a sharp knife to cut into shards. Serve and enjoy!