Follow these simple steps to create your Chewy Fudgy Frosted Brownies:

1. Preheat Your Oven: Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan or line it with parchment paper for easy removal.
2. Melt the Butter: In a medium saucepan, melt 1 cup of unsalted butter over low heat. Once melted, remove from heat and allow it to cool slightly.
3. Mix the Sugar and Eggs: In a large mixing bowl, combine the melted butter and granulated sugar. Stir until well blended. Add the eggs, one at a time, mixing well after each addition. Add the vanilla extract and mix until combined.
4. Sift Dry Ingredients: In a separate bowl, sift together the all-purpose flour, cocoa powder, baking powder, and salt.
5. Combine Mixtures: Gradually stir the dry ingredients into the wet mixture until just combined. Avoid overmixing; it’s okay if some small lumps remain.
6. Add Chocolate Chips: Fold in the semi-sweet chocolate chips for added texture and flavor.
7. Bake: Pour the brownie batter into the prepared baking pan and spread it evenly. Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted in the center comes out mostly clean (a few moist crumbs are okay!).
8. Cool: Allow the brownies to cool in the pan for about 30 minutes before frosting.
9. Prepare the Frosting: In a mixing bowl, beat together ½ cup softened unsalted butter and ⅔ cup cocoa powder until smooth. Gradually add in the powdered sugar and milk, mixing until you reach your desired consistency. Stir in the vanilla extract.
10. Frost the Brownies: Once the brownies are completely cooled, spread the frosting evenly over the top. Allow it to set for a few minutes before slicing.
11. Serve: Cut the brownies into squares and serve them fresh. Enjoy the indulgent, chocolaty goodness!