Ingredients
Method
- Preheat oven to 350°F (180°C). Beat the butter, brown sugar, and granulated sugar until creamy and slightly fluffy—about 1 minute. Add the egg and vanilla and mix until combined.
- Sprinkle the flour, baking soda, and salt over the wet ingredients. Stir until just combined. Fold in the chopped chocolate and walnuts.
- Press the dough into a 12-inch oven-safe skillet, spreading it evenly. Bake for 20–22 minutes, until edges are golden and the center is slightly soft. Let cool 5 minutes before slicing and serving.
Notes
Swap walnuts for pecans, hazelnuts, or omit entirely. Slightly underbake for a gooier center. If using a smaller skillet, reduce heat by 10–15 degrees and bake longer.
