Zucchini Cake with Cream Cheese Frosting and Caramel Sauce

Ingredients

• 4 eggs
• 2 cups sugar
• ½ cup vegetable oil
• 4 ounces butter (1 stick), room temperature
• 1 teaspoon vanilla
• 2½ cups cake flour
• 1½ teaspoons baking soda
• ¼ teaspoon baking powder
• 1½ teaspoon salt
• 1 teaspoon cinnamon
• ½ teaspoon fresh nutmeg
• 2 cups zucchini, grated
• 1½ teaspoons orange zest
• 6 ounces cream cheese, room temperature
• 2 ounces butter (½ stick), room temperature
• 1½ cups powdered sugar, sifted
• 1 teaspoon lemon juice
• ½ teaspoon lemon zest
• ½ cup sugar
• 1 ounce butter (2 tablespoons)
• 1/3 cup heavy cream
• ½ teaspoon vanilla
• ½ teaspoon salt