loaded peanut butter cookie bars - Pass the Cookies

Ingredients

• ½ cup (1 stick) butter, melted and cooled slightly
• 1 egg
• 1 cup light brown sugar, packed
• 1 tablespoon vanilla
• ½ cup creamy peanut butter
• 1 cup flour
• ¼ teaspoon salt
• 1 cup peanut butter M&M’s
• 3/4 cup chopped Snickers bars
• 3/4 cup chopped Reese’s