Maddie's Peanut Butter Brownies

Ingredients

• 1/2 cup butter, softened
• 1/4 cup peanut butter
• 1 cup packed light brown sugar
• 3 eggs
• 1 teaspoon vanilla
• 2 cups all purpose flour
• 2 teaspoons baking powder
• 1/8 teaspoon salt
• 1 cup chocolate syrup
• 1/2 cup coarsely chopped Mixed Nuts Roasted and Salted