01 -
Place a parchment paper round at the base of a 9-inch tart pan with ridges, and lightly spritz it with some nonstick spray.
02 -
In a microwave-friendly bowl, combine the chocolate chips with sunflower oil and heat for 45–55 seconds until melted.
03 -
Using a small spatula, spread half of the melted chocolate mix across the base and up the inner edges of the pan evenly.
04 -
Pop the chocolate-coated tart pan into the fridge while you prep the filling.
05 -
In a large mixing bowl, combine biscuit crumbs and icing sugar thoroughly with a whisk.
06 -
Place both the peanut butter and butter in the microwave for about 45 seconds to let them soften.
07 -
Blend the warmed peanut butter and butter mixture into the previously mixed dry ingredients until fully blended.
08 -
Retrieve the tart pan from the fridge and evenly spread the peanut butter mixture across the chocolate-coated layer.
09 -
Drizzle the remaining melted chocolate over the peanut butter layer and gently spread to cover it fully.
10 -
Lightly tap the pan against your countertop to even out the chocolate and get rid of any trapped air.
11 -
Refrigerate the tart for at least 4 hours (or leave it overnight) until it’s fully firm.
12 -
Set the tart pan over a small bowl and press gently to release the sides of the tart.
13 -
Carefully flip the tart upside down to peel off the tart base and parchment paper.
14 -
Flip the tart right-side up onto a serving plate by placing the plate over the tart base and turning it over.
15 -
Slice the tart into portions and serve while chilled.