
This is a tweaked version of Smitten Kitchen's My Favorite Brownies, which is currently my go-to brownie recipe. I love one-bowl recipes!
Pre-heat oven to 350ºF (~177ºC) and line an 8x8-in pan with parchment paper or foil. Spray with non-stick cooking spray.
Place butter and dark chocolate in a microwave-safe bowl. Heat in 30-second intervals, stirring until smooth.
Stir in both sugars and mix until combined.
Add in eggs one at a time, stirring until combined. Add vanilla and mix.
Sift in flour and salt and mix until just combined.
Pour batter into prepared pan and top with chocolate chips and pecans.
Bake for 30-35 minutes or until a toothpick inserted in the middle comes out clean.
Cool on a rack and cut into squares.