Add graham crackers, sugar, and pinch of salt to a food processors and pulse until crumbly. Slowly add butter and vanilla extract and continue to pulse until texture resembles wet sand. Add to a tart pan and press against the sides and bottom, ensuring crust is evenly distributed throughout the pan. Place in the freezer.

Add sugar to a large sauce pan over medium low heat. Stir occasionally until sugar has melted. Reduce heat to low and add butter. Stir until melted and then add heavy cream. Caramel will break apart but whisk continuously. If needed, increase heat to medium until mixture comes back together and is smooth then remove from heat.

Add salt and peanuts and fold together. Allow caramel to cool for about 10-15 minutes then pour on top of graham cracker crust and place back into the freezer.

Make the chocolate ganache layer by adding heavy cream to a sauce pan over low heat. Do not boil. Warm for about 2-3 minutes, then add dark chocolate chips. Whisk together until chocolate has melted and remove from the heat. Pour on top of the caramel layer and place into the refrigerator. Allow tart to set for 2-3 hours.

Optional step: To make the meringue, use a hand mixer or stand mixer with the whisk attachment and add egg whites. Beat on medium until eggs become frothy/bubbly, then add sugar very very slowly until stiff peaks form. Continue whisking and add vanilla extract and cream of tartar or white vinegar. Place into a piping bag and pipe on top of tart.

Chop up peanuts and garnish on top of the tart.