Preheat your oven to 350 F (176 C).
Melt your butter over medium-low heat and continue cooking until the milk solids start to turn a golden color. Remove from the heat because they will continue to brown!
Add the granulated sugar to the browned butter and whisk for about 30 seconds to combine. Let this cool for a few minutes.
In a separate bowl, mix together the dry ingredients (flour, cocoa powder, salt)
Chop up the daim candies into smaller pieces.
Transfer the butter and sugar mixture to a medium mixing bowl. Melt the chocolate either on the stove or in the microwave. Add in the vanilla extract and melted chocolate and whisk well to combine.
Add the eggs to the chocolate mixture one at a time, whisking to combine. Make sure the mixture isn't too hot so your eggs don't scramble!
Start folding in your dry ingredients until well combined. Note: If your batter looks split or lumpy, you can add a little more flour to bring it back together! Add in the chopped candies and fold those in as well.
Transfer to a parchment lined and greased baking tin (ours was a 9in x 6in glass baking pan).
Bake for about 30 minutes until a knife comes out mostly clean (it will have some crumbs stuck to it, as fudgy brownies shouldn't be totally set in the middle!). Let cool before slicing and enjoy!