Fill a pot with butter, sugar and salt. Cook on medium heat, stirring often, until the mixture turns amber and registers 300°F (150°C).
Pour the mixture in a parchment lined baking pan. Sprinkle chocolate evenly over the top. Allow to sit until slightly melted; use a spatula to smooth the chocolate. Top evenly with almonds, pressing gently, so the nuts stick to the chocolate.
Refrigerate until set. Break into pieces and serve.