Preheat oven to 350 degrees; grease a 13 x 9 x 2-inch baking pan. In a large bowl, combine the flour and sugar. With a pastry blender or 2 knives, cut in the butter until crumbly. Press the mixture firmly in the prepared pan. Bake for 20 minutes. Meanwhile, in a small bowl, stir the cornstarch into the amaretto until dissolved; stir in the condensed milk. Pour the mixture evenly over the prebaked crust. Top with the chocolate chips, coconut and almonds; press down firmly. Bake for 25 to 30 minutes longer, or until golden brown. Cool in the pan on a wire rack. Refrigerate until ready to serve.