Chocolate Peanut Butter Tart

Name: Chocolate Peanut Butter Tart
Yield: 10
Ingredients: For the Crust:; 4 oz semisweet chocolate, chopped (best quality, such as Ghirardelli); 4 tablespoons unsalted butter, cut into tablespoons; 2 cups cookie crumbs from Oreo baking crumbs, Dewey’s Brownie Crisp Cookies, Oreo Thins (no need to remove the cream), or Nabisco Chocolate Wafers; For the Peanut Butter Filling:; 8 oz cream cheese, at room temperature; 1 cup smooth peanut butter (I use Skippy Natural); 1 cup sugar; 2 teaspoons vanilla extract; 1 cup cold heavy cream; For the Topping:; 4 oz semisweet chocolate, chopped (best quality, such as Ghirardelli); ½ cup heavy cream; ¼ cup salted roasted peanuts, chopped