My Family's Favorite Bake Carrot Cake

Ingredients

• 2 cups (250g) all-purpose flour
• 2 cups (400g) granulated sugar
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1 teaspoon ground cinnamon
• ½ teaspoon ground nutmeg
• ½ teaspoon salt
• 1 cup (240ml) vegetable oil
• 4 large eggs
• 3 cups (300g) finely grated carrots
• 1 cup (100g) crushed pineapple, drained
• 1 cup (120g) chopped walnuts or pecans (optional)
• 8 oz (225g) cream cheese, softened
• ½ cup (115g) unsalted butter, softened
• 4 cups (480g) powdered sugar
• 1 teaspoon vanilla extract
• 2 tablespoons milk or heavy cream (if needed)