10 tablespoonsunsalted butter, plus 2 teaspoons(150 grams)
1 ½cupsgranulated sugar(300 grams)
3mediumeggs(135 grams)
½cupunsweetened Dutch process cocoa powder plus 2 tablespoons(70 grams)
1 ⅓cupschocolate chips, I recommend a mix of milk and dark(225 grams)
Instructions
Preheat oven to 350 degrees F. Line an 8-inch square pan with foil or parchment and grease bottom only.
Weigh your flour and whisk it with the baking powder and salt. You only need to sift it if it's lumpy. Set aside.
Begin melting butter in the saucepan. When it's about halfway melted, add just ½ cup (100 grams) of the sugar. Heat the butter and sugar together for 1-2 minutes to dissolve the sugar. Remove from heat.
In a mixing bowl, whisk together the eggs and remaining 1 cup of sugar until smooth, then whisk in the melted butter mixture along with the cocoa powder. Stir until smooth, then stir in the flour mixture. Let cool a little if still warm (so that you don't melt the chocolate chips).
Fold in the chocolate chips.
Scrape the thick batter into the prepared pan. Smooth top with a spatula.
Bake at 350 degrees f for 30 to 35 minutes (I baked the full 35).
Let cool completely, then lift from the pan and serve. If desired, chill before serving.