Line a 15x10x1-inch pan with parchment paper and set aside.
In a double boiler or heatproof bowl over barely simmering water, melt the ruby chocolate until about two-thirds of the chocolate pieces are melted.
Remove from heat and stir continuously until smooth and fully melted.
Stir in 1 cup of crushed pretzels.
Spread the chocolate mixture into the prepared pan.
Sprinkle freeze-dried strawberries and remaining pretzels evenly over the top.
Refrigerate the Pretzel Strawberry Bark for 15–20 minutes or until firm.
Break or cut into pieces before serving.
Store in an airtight container.