Pour the chow mein noodles into a large mixing bowl and set aside.
Add the chocolate chips to a double boiler pan and melt over medium heat, stirring occasionally. Remove from heat.
Add the Nutella spread and stir to combine.
Pour on top of the noodles and gently toss to coat.
Add the hazelnuts and toss to distribute.
Line a cookie sheet with wax or parchment paper. Drop the haystacks by the tablespoon on the lined sheet.
Before the chocolate hardens, sprinkle each haystack with red and green M&M candies. I used mini M&M’s but regular size candies would work too.
Place in the refrigerator for about an hour to allow the chocolate to completely harden. ENJOY!!
Store in an airtight container in the refrigerator for up to 30 days.