Snickers Layer Cake

Name: Snickers Layer Cake
Cuisine: American
Ingredients: 4 cups cake flour*; 4 cups brown sugar; 125g/4ozs. cocoa powder; 4.5 teaspoon bicarbonate soda; 4.5 cups water; 1.5 cups oil (not a strongly flavoured one like olive oil); 4 tablespoons white vinegar; 3 tablespoons vanilla; 250g/8.8ozs. finely chopped dark chocolate; 1/2 cup coconut oil; 1/2 cup maple syrup; 2.5 tablespoons smooth peanut butter; 250g/8.8ozs. vegan spread; 250g/8.8ozs. smooth peanut butter; 3 cups icing or powdered sugar, sifted; Pinch of salt to taste; 400g/14ozs. dark chocolate; 1.5 cups coconut cream; 1 cup icing sugar, sifted; 125g/4ozs. roasted peanuts, roughly chopped; Gold sprinkles