Olive Oil Carrot Cake Chai Latte Frosting

Name: Olive Oil Carrot Cake + Chai Latte Frosting
Ingredients: Olive Oil Carrot Cake; 1 cup olive oil; 1/4 cup vegetable oil; 4 large eggs; 1 teaspoon salt; 1 tablespoon ground cinnamon; 1/2 teaspoon ground ginger; 1/2 teaspoon ground nutmeg; 1/4 teaspoon ground allspice; 1 tablespoon vanilla extract; 1 tablespoon maple syrup; 1 1/2 teaspoons baking powder; 1/2 teaspoon baking soda; 2 cups cake flour; 3 cups shredded carrots; 3/4 cup toasted walnuts, chopped; 3/4 cup toasted almonds, chopped; 2 tablespoons dry milk powder, optional; A few rainbow carrots, for decoration, optional; A handful of toasted almonds, for decoration, optional; Chai Latte Frosting; 1 stick salted butter, room temperature; 8 ounces cream cheese, room temperature; 3 1/2 cups powdered sugar; 1 teaspoon vanilla extract; 1 teaspoon ground cinnamon; 1 teaspoon ground ginger; 1 teaspoon ground cardamom; 1 teaspoon ground coriander; 1/2 teaspoon ground cloves