Preheat your oven to 350°F (175°C).
Combine graham cracker crumbs, melted vegan butter, and maple syrup in a bowl, mixing thoroughly.
Press the mixture into a 9-inch pie dish.
Bake for about 10 minutes until golden brown.
Heat coconut milk, sugar, cornstarch, and salt in a saucepan over medium heat, whisking continuously to eliminate lumps.
Once thickened, remove from heat and stir in chocolate chips until smooth.
Add vanilla extract, mix, and pour the filling into the cooled crust.
Spread evenly and refrigerate for at least 2 hours until set.
Beat aquafaba and cream of tartar in a clean, dry bowl with an electric mixer until stiff peaks form.
Gradually add powdered sugar and vanilla, beating until combined.
Once the chocolate filling is set, spread the meringue topping over the pie, creating decorative peaks.
Lightly brown the meringue with a kitchen torch, if desired.