Grease a 9" x 9" square baking pan with cooking spray or butter.Melt the butter in a large sauce pan over medium heat. Add the brown sugar, vanilla extract and salt, then stir to mix thoroughly. Add the oats and continue to cook while stirring over medium heat for 2-3 minutes.Remove from heat and stir in the cranberries. Then add the sliced almonds and stir until combined.Pour the mixture into the greased pan and press down firmly. Cover and refrigerate for 1-2 hours, or chill in the freezer for 30-45 minutes, or until firm. Use a pizza cutter to cut into bars.Melt the white chocolate in the microwave at 30 second intervals at 50% power, stirring and heating until just melted, but not too warm. Dip the bottoms of the bars into the chocolate, use a fork to carefully remove them from the chocolate then lay them on a cookie sheet lined with wax or parchment paper. Using a fork, drizzle a little chocolate on top in a back and forth pattern.