Browned Butter Blondies

Bahan-bahan (16 porsi)

• 1 cup butter (2 sticks)
• 2 cups brown sugar (packed)
• 2 eggs (large)
• 2 teaspoons vanilla
• 2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• 2 cups semisweet chocolate chips