Stadium Brownies - Confessions of a Chocoholic

Ingredients

• 1 1/4 sticks butter, melted (plus more for buttering pan)
• 3 medium eggs
• 3/4 cups dark brown sugar
• 1/2 cup granulated sugar
• 1 cup unsweetened cocoa powder
• 1 teaspoon vanilla extract
• 1 teaspoon instant coffee powder
• 1/4 teaspoon salt
• 1/2 cup all-purpose flour
• 1 cup (8 oz) crunchy peanut butter
• 1 cup (8 oz) milk chocolate
• 2.5 cups caramel popcorn (ingredients below)
• 5 oz salted caramel sauce
• 5 cups popped butter popcorn