Dulce de Leche Cheesecake Bars

INGREDIENTS

• 3 tablespoons (or more) heavy whipping cream
• 2/3 cup purchased dulce de leche
• 3 large eggs
• 1/4 teaspoon ground cinnamon
• 1/2 cup purchased dulce de leche*
• 10 tablespoons (1 1/4 sticks) unsalted butter, melted
• 1 cup sugar
• 2 tablespoons sugar
• Fleur de sel**
• 2 1/4 cups finely ground graham crackers (from about 17 whole graham crackers)
• 3 8-ounce packages Philadelphia-brand cream cheese, room temperature
• Nonstick vegetable oil spray
• 2 teaspoons vanilla extract