***If you use unsalted butter, increase the salt to ¾ teaspoon
***The recipe calls for a 10-inch cake pan. Make sure you use one with 3-inch depth. I have also made this cake in a 9"x3" pan and left out about ⅓-1/2 cup of the cake batter.
Preparation
Preheat oven to 350 degrees. Butter and flour a 10-inch cake pan.
In a large saucepan, bring maple syrup to a boil over medium-high heat, then simmer over low heat until thick and reduced to ¾ cup, about 20 minutes. Be sure to keep an eye on the syrup. If left unattended, it may foam up and overflow (making a mess) if the heat is too high. Pour thickened syrup into the cake pan. Arrange apples in the pan in 2 concentric circles, overlapping them slightly.
In a medium bowl, whisk the flour, baking powder, baking soda and salt. In a glass measuring cup, whisk the eggs with the buttermilk and vanilla. In the bowl of a standing electric mixer fitted with the paddle, beat the butter and sugar at medium speed until fluffy, about 2-3 minutes. Beat in the dry and wet ingredients in 3 alternating batches until the batter is smooth; scrape down the sides of the bowl.
Pour the batter over the apples and spread it in an even layer. Bake the cake for about 60-70 minutes, or until golden on top and a toothpick inserted in the center comes out clean. Let the cake cool on a rack for 45 minutes.
Place a plate on top of the cake and invert the cake onto the plate; tap lightly to release the cake. Remove the pan. Let the cake cool slightly, then cut into wedges and serve.
You may serve the cake with creme fraiche or vanilla ice cream.
Recipe by My Lilikoi Kitchen at https://www.mylilikoikitchen.com/2018/10/05/maple-apple-upside-down-cake-2/