Gather the Goods

3 cups heavy cream, divided

2 cups 2% milk

4 large egg yolks (reserve the egg whites)

1 whole large egg

1/4 cup granulated sugar

3 tablespoons cornstarch

pinch salt

10 ounces semi sweet chocolate morsels

3 medium bananas, medium dice

2 tablespoons butter

16 ounces crushed toffee bar, divided

Crust

2 1/2 cups crushed graham crackers

8 tablespoons melted butter

3 egg whites (reserved from the custard)

Make It

Combine 1 cup of heavy cream and milk in a medium sauce pot over medium high heat. Bring up to a gentle simmer.
In a large heatproof bowl mix the egg yolks, whole egg, sugar, cornstarch, and salt together. While whisking pour the hot liquid into the egg mixture. Then pour the liquid back into the sauce pan and cook over medium low to medium heat stirring constantly with a wooden spoon until it thickets to its full potential!
Pour in the chocolate and mix until it melts. Take off heat, pour into a clean vessel, and cover directly on the surface with plastic wrap to avoid custard skin formation. Set in the fridge to cool completely and set up. This should be no more than 3 hours.
Preheat the oven to 350 degrees. Combine the graham crackers, 8 ounces of crushed heath bar, butter, and egg whites and mix until it comes together. Using your preferred pie plate (8-9 inches) mold the crust around the pie dish by forming a thick 1/2 inch edge. It will seem like there is going to be a lot of crust but this is great!
Put in the oven for 15 minutes until just lightly golden and firm. Remove and cool completely.
Heat a medium saute pan with butter over medium high heat. Add the bananas and cook for about 10 minutes until the bananas are a but caramelized. Remove from heat and cool completely.
In a large mixing bowl whip the remaining 2 cups of heavy cream. Fold half of the heavy cream into the cooled bananas. Leave the other half for the top.
Start to layer: Pour the custard on the bottom, top with the banana whipped cream, sprinkle that with 6 ounces of crushed heath bar and top with large dollops of the remaining whipped cream. Make those pretty divots and swirls! Sprinkle with remaining heath bar!