Preheat oven to 180°C. Grease a 20cm square cake pan and line with Multix Baking Sheets.
In a small bowl, stir the salt crystals into the caramel and set aside. Whisk the eggs until thick. Place the butter in a large heatproof bowl, cover with Multix Cling Wrap, and microwave on low heat until melted.
Add the chocolate cover again with the Multix Cling Wrap and melt on a low heat. Remove from the microwave and stir until thoroughly combined.
With a large metal spoon, quickly stir the sifted flour, cocoa, sugar, vanilla, and whisked eggs into the warm butter and chocolate mixture, till thoroughly mixed. Transfer to the lined cake pan. Using 2 teaspoons, make small holes in the chocolate batter and place small dollops (about 1/2 teaspoon) of the salty caramel inside.
Bake the brownies in the preheated oven for approximately 20 minutes, or until a skewer inserted into the centre comes out clean. Allow to cool in the pan, cut into squares to serve.