7 to 10 1/2ozmilk or dark chocolate200 to 300 g, 2 to 3 bars
7 to 10 1/2ozwhite chocolate200 to 300 g, 2 to 3 bars
1cupred and green M&Ms
1/3cupsmall pretzelswhole or crushed
2mediumcandy canescrushed fine, optional
Instructions
Gather your tools and ingredients before starting to melt chocolate. Crush the candy canes and the pretzels into large pieces, if desired and keep them handy. Once the chocolates are melted, you'll need to move quickly before it sets in the bowls.
Line an 8x8 pan or a baking sheet with parchment paper.
If using bars, break the dark or milk chocolate into fourths and add to a microwave-safe bowl. Start with high heat at 30 seconds, stir then in 15-second increments, stirring each time until smooth and fully melted.
Spread the dark chocolate into an even layer into the pan with parchment, or if using a baking sheet, scrape it into one layer but don't spread it since you want it to be about a 1/4 inch thick. Set aside.
In a fresh, new microwave-safe bowl: Melt the white chocolate the same way as you did the other chocolate. Pour it over the dark layer and spread gently.
Use a toothpick or the side of a small spoon to gently swirl through both chocolates. Don't overmix, since you want to still see both white and dark.
Add the M&Ms and pretzels evenly over the top and gently press them into the chocolate so they set. Sprinkle on the crushed candy canes, if using. Note: You can adjust the amount of the mix-ins as listed; fewer M&Ms or more pretzels, plus any custom additions you'd like to add.
Chill for 15 to 20 minutes in the fridge or freezer, or just leave the slab out on the counter undisturbed, until set firm.
Lift the bark out using the parchment and break it into pieces. You can use a long, sharp knife and a cutting board to make clean cuts if desired.