Hibiscus Loaf Cake Recipe

Name: Hibiscus Loaf Cake Recipe
Ingredients: For the Cake; Baking spray; 1 cup dried hibiscus flowers (See Notes); 1/2 cup boiling water; 3 tablespoons honey; 1 tablespoon fresh lemon juice; 2 1/2 cups (about 12 1/2 ounces) all-purpose flour; 1 1/2 teaspoons baking powder; 1/2 teaspoon baking soda; 1 teaspoon salt; 6 tablespoons unsalted butter, at room temperature; 1/4 cup vegetable oil; 1 cup (about 7 ounces) granulated sugar; 3 large eggs, beaten and at room temperature; 3/4 cup whole milk, at room temperature; 2 teaspoons pure vanilla extract; For the Spread; 8 ounces cream cheese, cut into 8 pieces and at room temperature; 1/4 cup sour cream; 1/4 cup honey; 1/2 teaspoon pure vanilla extract; 1/8 teaspoon salt