Sourdough Carrot Cake

Ingredients

• 2 cups all-purpose flour
• 1 cup granulated sugar
• 1 cup brown sugar
• ⅔ cup oil
• 1 cup sourdough starter
• 1 cup grated carrots
• 4 large eggs
• 1 teaspoon vanilla extract
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1 teaspoon ground cinnamon
• 1/2 teaspoon ground nutmeg
• 1/2 teaspoon salt
• 1/2 cup of chopped pecans
• 1/2 cup raisins
• 8 oz cream cheese, softened
• 1/2 cup unsalted butter softened
• 4 cups powdered sugar
• 1-2 tablespoons milk for consistency