Directions

1. 1. Remove the eggs from the refrigerator 1 hour in advance and soften the butter to room temperature.
2. 2. Beat the softened butter and brown sugar in a bowl then add the eggs one at a time, whisking briskly. Add the flour and baking powder and stir vigorously until the batter is uniform.
3. 3. Break the chocolate into pieces and gently melt them in a double broiler until smooth.