Spread about 1 tsp Nutella onto the flat side of a Ritz cracker. Sandwich this cracker with another and place on a parchment lined pan or plate. Repeat for the rest of the crackers and place in the freezer for about 10-15 minutes or so.
While freezing, using a double boiler method (or microwave method if preferred), melt white chocolate until smooth, stirring frequently.
Once melted, stir in 1/4 tsp peppermint extract.
Dip each Nutella sandwich half way into white chocolate and allow extra to drip off. You can use a spoon to help spread evenly as well. Place on parchment and sprinkle with holiday sprinkles or candy cane pieces.
Repeat with the remaining sandwiched and allow white chocolate to cool and harden. You can place in the refrigerator to speed this up as well.