banoffee pie recipe

Ingredients: 1 1/2 cups graham cracker crumbs (or digestive biscuits) 1/3 cup unsalted butter, melted 1 can (14 ounces) sweetened condensed milk 4 ripe bananas, sliced 1 1/2 cups heavy cream 2 tablespoons powdered sugar 1 teaspoon vanilla extract Grated chocolate or cocoa powder (for garnish)