If you love pecan pie, this Pecan Upside Down Cake is a must-try! Baked into a soft, buttery cake. A gooey brown sugar caramel and toasted pecans go into the bottom of the pan, the vanilla cake batter goes right on top, and when you flip it out, all that glossy caramel pecan topping melts down the sides. It's the dessert I love to bring to the table once the weather turns cool, whether it's a Sunday dinner, a Thanksgiving dessert spread, or just because a cozy fall bake sounds good.