Gather the ingredients. Preheat the oven to 375°F (190°C). Coarsely chop the 225 g semi-sweet chocolate.
Coarsely chop the 120-150 g pecans.
The Dough
In a medium mixing bowl, whisk together the 280 g all-purpose flour, 1 tsp. baking soda, and ½ tsp. salt. Set aside.
In a large bowl, using whisk beat the softened 227 g unsalted butter, 150 g brown sugar, and 150 g sugar on medium speed until the mixture is light and fluffy.
Add the 2 eggs, one at a time, beating well after each addition. Mix in the 1 tsp. vanilla extract.
Gradually add the dry ingredient mixture to the wet ingredients, mixing only until just combined.
With a spatula, gently fold in the coarsely chopped 225 g semi-sweet chocolate and 120-150 g pecans.
The Baking
Drop heaping tablespoons of dough onto a parchment paper-lined baking sheet, placing them about 2 inches apart. I do it in 2-3 waves.
Bake for 8-10 minutes, or until the edges are lightly browned and the centers are set. Let the cookies cool on the baking sheet for 10 minutes. This allows them to set fully before being moved. I recommend removing them after so that the bottom do not overbake.
The Serving
Serve your Baker's Chocolate Chunk Cookies [Biscuits aux chocolat de Baker] warm or at room temperature. They are perfect with a glass of milk or a cup of coffee.