Preheat oven to 350℉ and grease a brownie pan.
In a medium pot, combine the sugar, butter, and milk.
Over medium-low heat, cook the mixture until the butter is melted and the sugar is dissolved.
Remove from heat and stir in the chocolate and cocoa until chocolate is melted and mixture is smooth.
Stir in vanilla extract.
In a large bowl, whisk together flour, baking soda, and salt.
Add the eggs stirring, then pour in the chocolate mixture, stirring to combine.
Fold in Mini Eggs.
Spread batter evenly in the prepared pan.
Bake for 20-22 minutes or until edges are pulling away from the sides of the pan and getting crispy. Centre will still be soft and gooey.
Allow to cool in the pan.