Double Decker Pumpkin Caramel Pie

Bahan-bahan (10 porsi)

• 25 Oreos, (crushed into crumbs (need 2 cups))
• 6 tablespoons unsalted butter, (melted)
• 3 large eggs
• 1 cup heavy whipping cream
• One 15-ounce can unsweetened pumpkin puree
• 1/2 cup packed light brown sugar
• 1 teaspoon pumpkin pie spice
• 1/2 teaspoon salt
• 28 caramels, (unwrapped)
• 1 3/4 cups heavy whipping cream, (divided)
• 1 to 2 ounces bittersweet chocolate, (for grating)