1C (6 oz) (170 gr)semisweet or dark chocolate chips(optional)
Instructions
Preheat the oven to 356º F (180° C). Grease with butter and line a square pan of about 8.70 inches (22 cm) wide with parchment paper. Also, in a small bowl, sift the flour with the salt.
Place the butter in a small frying pan and bring it to medium-low heat, this is essential for the butter to brown evenly. Cook the butter for 10-15 minutes, stirring constantly with a rubber spatula to scrape the bottom and sides of the pan every 15 seconds to prevent burning. At first, the butter will melt and foam, then the foam bubbles will become smaller and the butter will begin to give off a nutty aroma. Continue to cook the butter until it begins to color and you see small floating brown bits on the surface (these are the milk solids in the butter that separate and toast). Once the butter is browned, remove it from the heat.
To the same pan with the butter, add the cocoa powder, instant coffee, dark chocolate chunks and oil. Mix with the same spatula until the chocolate melts and all the ingredients are perfectly integrated. Let this mixture stand until completely cooled.
In a large bowl, add the eggs with the two types of sugar, and the vanilla extract and beat with an electric mixer or a hand whisk for 2-3 minutes until a light, fluffy and lighter colored mixture is obtained.
Carefully add the chocolate mixture (which should no longer be hot) to the bowl with the egg mixture and beat for 30 seconds more.
Finally, add the flour mixture with the chocolate chips and incorporate with the rubber spatula until smooth and free of lumps.
Pour the mixture into the pan and spread it with the rubber spatula to make it even. Bake the brownies at 356º F (180° C) for about 30 minutes until they are firm around the edges but when a toothpick or knife is inserted in the middle, it still comes out with a little brownie batter.
Once the brownies are ready, take them out of the oven, let them rest for 20 minutes inside the pan and then turn them out and place them on a rack to cool down completely before cutting. When cool, cut into 16 equal portions.