Nectarine Upside-Down Cake

Instructions

1. 1

   Preheat oven to 340 degrees F (170 degrees C). Place butter in a 9-inch round cake pan and melt in the oven as it preheats.

2. 2

   Remove pan from oven and sprinkle brown sugar evenly over melted butter. Arrange nectarine pieces on the brown sugar layer.

3. 3

   Gently whisk flour, baking powder, and salt together in a bowl. Beat unsalted butter and white sugar together in a separate bowl until creamy and smooth; add eggs, 1 at a time, beating well after each addition. Beat vanilla extract into the creamed butter mixture. Add flour mixture to creamed butter mixture; beat on low speed just until batter is combined, about 1 minute. Spread batter over nectarine layer.

4. 4

   Increase oven temperature to 350 degrees F (180 degrees C).

5. 5

   Bake in the preheated oven until cake is golden brown and a toothpick inserted in the center comes out clean, 35 to 40 minutes. Cool cake in pan on a wire rack for 15 minutes. Run a knife around edge of pan and invert cake onto a serving plate. Serve warm or at room temperature.