Ingredients

• a little butter and flour for greasing the pan
• 3 cups sifted cake flour (sift first, then measure)
• 2 teaspoons baking powder
• 1 1/2 teaspoons ground cinnamon
• 1 teaspoon baking soda
• 1 teaspoon ground ginger
• 1/2 teaspoon salt
• 1/4 teaspoon ground allspice
• 1/8 teaspoon ground cloves
• 2 cups granulated sugar
• 1 cup canola oil or vegetable oil
• 4 large eggs
• 1 15-ounce can pure pumpkin (not "pumpkin pie filling")
• 1 teaspoon vanilla extract
• For the caramel icing:
• 1/3 cup heavy whipping cream
• 3 ounces cream cheese, at room temperature and cut into small pieces
• 1 cup plus 2 tablespoons granulated sugar
• 1/3 cup water
• 4 tablespoons unsalted butter
• For serving (optional): whipped cream

Makes one sheet cake