Baby Sweet Potato Cakes

Name: Baby Sweet Potato Cakes
Ingredients: Butter-flavored nonstick cooking spray; 1/2 cup unsalted butter, softened; 1 cup sugar; 2 large eggs, room temperature; 1 1/4 cups all-purpose flour; 1 teaspoon baking soda; 1 teaspoon pure vanilla extract; 1/2 teaspoon salt; 1/2 teaspoon ground ginger; 1/2 teaspoon ground cinnamon; One 15-ounce can sweet potatoes, drained and mashed; 1/3 cup buttermilk; 1/2 cup chopped pecans, toasted; Caramel-Pecan Sauce; Vanilla ice cream, for serving (optional)