How to Create My Grandmother's La Comedia Sweet Potato…

Ingredients

• 2 cups (450g) mashed sweet potatoes (about 2 medium sweet potatoes)
• 1/2 cup (120ml) heavy cream
• 1/2 cup (100g) granulated sugar
• 2 large eggs, separated
• 1 teaspoon vanilla extract
• 1 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 1/4 teaspoon salt
• 4 large egg whites
• 1/4 teaspoon cream of tartar
• 1/4 cup (50g) granulated sugar (for meringue)