In medium bowl, add cocoa, eggs, salt, baking powder, baking soda and vanilla and whisk until all blended and smooth. Add chocolate chips on top, but do not stir in yet.
In a separate small bowl, microwave butter until melted (30 seconds). Add sugar, and microwave again for 30 seconds.
Pour over chocolate chips and whisk until blended. Its ok if not all are melted.
Stir in flour.
Use a spatula to transfer half of the batter to an 8x8 (or smaller) baking pan.
Cut caramel squares in half and evenly distribute over batter.
Top with the other half of the batter and smooth out with a spatula.
Let cool before cutting.
Melt a few caramel squares in the microwave or saucepan and drizzle over the brownies before cutting.
Enjoy warm or cold with a glass of milk.
Makes 6 thick brownies if you use a smaller pan, or 9 flatter brownies in 8x8.
Recipe by My San Francisco Kitchen at https://www.mysanfranciscokitchen.com/caramel-brownies/