Monster Cookie Bars

Bahan-bahan (48 porsi)

• ⅔ cup butter (room temperature)
• 2 cups light brown sugar
• 1⅓ cups white sugar
• 4 eggs
• 1½ teaspoons baking soda
• 1 teaspoon vanilla extract
• 1 tablespoon maple syrup
• 2 cups crunchy peanut butter
• 6 cups old fashioned oats
• 1 cup semi-sweet chocolate chips
• ½ cup m&m candies (for topping)