Sift together the almond flour, powdered sugar, and black cocoa powder into a large bowl. Set aside.
In a separate bowl, use an electric mixer to whisk the egg whites until foamy.
Gradually add the granulated sugar and food colouring to the egg whites while continuing to whisk, until you achieve stiff peaks.
Gently fold the dry ingredients into the egg white mixture, using a spatula. Be careful not to over-mix.
Transfer the batter to a piping bag fitted with a round tip.
Pipe the batter onto the prepared baking sheet in small circles, with a line on top to create the shape of the pot of gold. Space them evenly apart.
Tap the baking sheet gently on the counter to release any air bubbles.
Let the macarons rest at room temperature for 30-45 minutes, until a skin forms on the surface.
Preheat the oven to 285°F (140°C).
Bake the macarons for 20-22 minutes, until they are fully set.
Remove the baking sheet from the oven and let the macarons cool completely before removing them from the parchment paper or silicone mat.
To decorate the macarons, melt some chocolate in a microwave or using a double boiler.
Using a piping bag or a spoon, pipe or spread a small amount of melted chocolate around the rim of each macaron shell.
Dip the chocolate-coated rim into gold sprinkles, gently pressing the sprinkles into the chocolate.
To create pot handles, pipe small handles out of melted chocolate onto parchment paper or a silicone mat. Allow to set.
To assemble the macarons, pair up the shells of similar size and shape.
Pipe a small amount of salted caramel buttercream around the edge of one half of each pair to create a dam.
Fill the centre of each macaron with salted caramel sauce.
Gently sandwich the two halves together to create a finished macaron.
To add the pot handles, gently press the handle into the buttercream.
Serve and enjoy!