Step 1

Preheat the oven to 300°F/150°C. Line a cookie sheet with baking paper.

Step 2

Beat the egg whites with an electric mixer or stand mixer, slowly adding the sugar, until stiff peaks form.

Step 3

Gently fold in the chocolate chunks, cornflakes and vanilla.

Step 4

Drop tablespoonfuls of the mixture onto the prepared baking sheet, spaced 1” apart.

Step 5

Bake for 15-20 minutes or until the outside is crispy.

Step 6

Melt the remaining dark chocolates and drizzle or splatter over the cooled cookies, then sprinkle each one with a few flakes of sea salt.