01 - Preheat oven to 350°F. Arrange the pie crust in a 9-inch pie dish and set aside.
02 - In a medium mixing bowl, whisk pumpkin purée, granulated sugar, egg, ground cinnamon, ground ginger, ground nutmeg, salt, heavy cream, and vanilla extract until creamy and homogenous.
03 - In a separate large bowl, cream together softened butter, brown sugar, and granulated sugar until pale and fluffy. Incorporate the egg and vanilla extract until smooth.
04 - In another bowl, whisk together all-purpose flour, baking soda, and salt. Gradually fold dry mixture into the butter mixture until just combined. Gently fold in semisweet chocolate chips.
05 - Evenly spread the pumpkin mixture into the prepared pie crust.
06 - Drop spoonfuls of cookie dough over the pumpkin layer. Carefully spread to cover most of the surface; dough will expand as it bakes.
07 - Bake for 40 to 45 minutes, until the top is golden and set, and a toothpick inserted in the center comes out mostly clean.
08 - Let dessert cool completely on a rack before slicing. Serve at room temperature or slightly warmed.