Oreo Peanut Butter Bars

Bahan-bahan (16 porsi)

• 30 Oreos, (not double stuffed)
• 6 tablespoons salted butter, (room temperature)
• 1 cup salted butter, (melted)
• 2 cups graham cracker crumbs
• 2 cups powdered sugar
• 1 ¼ cups creamy peanut butter, (divided)
• 1 ½ cups semi-sweet or milk chocolate chips