01 -
Cut a parchment circle to fit the bottom of a 9-inch fluted tart pan, then spray it lightly with some nonstick spray.
02 -
Dump the chocolate chips and vegetable oil into a microwave bowl and heat them for 45-55 seconds until smooth.
03 -
Using an offset spatula, evenly spread half the chocolate across the bottom and sides of the prepared pan.
04 -
Pop the pan into the fridge to set the chocolate while you work on the filling.
05 -
Toss the powdered sugar and graham cracker crumbs together in a mixing bowl until evenly combined.
06 -
Microwave the peanut butter and butter for about 45 seconds to soften them up.
07 -
Mix the warm buttery peanut butter into the dry mix, stirring until it all comes together.
08 -
Take the chilled tart pan out of the fridge, then spread the peanut butter filling all over the chocolate layer.
09 -
Pour the rest of the melted chocolate on top of the filling and spread it out to reach the edges.
10 -
Gently tap the pan on your counter to smooth out the chocolate and get rid of bubbles.
11 -
Refrigerate the whole thing for at least 4 hours, or let it sit overnight until it’s fully firm.
12 -
Put the pan on a small bowl and press gently to loosen up the sides.
13 -
Carefully flip the tart upside down, peel off the paper, and remove any remaining pan pieces.
14 -
Put a plate over the tart, flip it upright, and get it ready to serve.
15 -
Cut into slices and enjoy chilled.