Treviso ends, sardine cream and smoked roe

Ingredients

• 6 tardivo or treviso radicchio
• 5 cups rice wine vinegar
• 2 cups water
• 11⁄2 cups sugar
• 1⁄2 cup salt
• 2 flounder egg sacks (other roes can be used as substitutes)
• 4 cups kosher salt
• 2 cups granulated sugar
• 8×8 inch baking pan
• 1 qt fish scrap
• 1 qt heavy cream
• lemon juice
• salt and pepper