Peanut butter chocolate chip brownies

Ingredients

• 1 1/3 Cups Packed Brown Sugar
• 1/4 Cup Butter or Margarine, melted
• 1/2 Cup Peanut Butter
• 1 Teaspoon Vanilla Extract
• 3 Eggs
• 1 1/2 Cups All-Purpose Flour
• 3/4 Teaspoon Baking Powder
• 1/4 Teaspoon Baking Soda
• 1/2 Teaspoon Salt
• 1 Cup Semi-Sweet Chocolate Chips