Cranberry Obsession Snow Cake

INGREDIENTS

• 10 ounce unsalted butter, at room temperature, plus more for pans
• 3 1/2 cups cake flour
• 4 teaspoons baking powder
• 1/2 teaspoon salt
• 2 1/4 cups granulated sugar
• 7 large egg whites, at room temperature
• 3 3/4 cups cranberries, divided
• 3/4 cup granulated sugar
• 1 1/2 cups cranberry or cherry preserves
• 5 large egg whites, at room temperature
• Pinch of salt
• 1 1/4 cups granulated sugar
• 12 ounces white chocolate (bars or a block, not chips), divided
• 1 pound unsalted butter, cut into pieces and at room temperature
• 1/2 cup colorless liqueur such as crème de cacao or kirsch
• About 2 tbsp. powdered sugar