Hummingbird Cake Recipe

Name: Hummingbird Cake Recipe
Ingredients: For the Cake:; 3 cups (15 ounces) all-purpose flour; 1 cup dark brown sugar; 1/2 cup sugar; 2 teaspoons ground cinnamon; 1 teaspoon baking soda; 1 teaspoon salt; 1/2 cup buttermilk, at room temperature; 1/2 cup vegetable oil; 3 large eggs, lightly beaten; 2 teaspoons vanilla extract; 2 cups mashed bananas; 1 (8-ounce) can crushed pineapple, drained; 1 cup pecans, coarsely chopped; For the Cream Cheese Frosting:; 2 (8-ounce) packages of cream cheese, at room temperature; 8 tablespoons (1 stick) unsalted butter, at room temperature; 2 cups confectioner's sugar; 1 teaspoon vanilla extract; 1/2 cup pecan halves