To prepare a triple chocolate mocha pie, you will first need to prepare the ingredients for the pie. You will need the following ingredients: 12 cup (60 ml) granulated sugar, 2 tablespoons (14 g) cocoa powder, 1 teaspoon vanilla extract, and 1 tablespoon milk. Preheat the oven to 350 degrees F (180 degrees C). Grease and flour two 9-inch (23 cm) pie shells. Fill the crusts about 2/3 full with the mixture and bake for 35 to 40 minutes or until the filling is bubbly and golden brown. Remove from oven and let cool before serving.