Upside-DownAlmond-PlumCake. Credit: Jason Donnelly. Hands On TimeBake 40 minutes or until a toothpick comes out clean and center is set. Let cool in pan 15 minutes. Loosen sides of cake; invert onto serving plate. Upside-DownAlmond-PlumCake.PlumUpside-DownCake Recipe with Brown Butter and Orange Flavor. For cake: to the bowl with browned butter, add brown sugar, white sugar, salt, cinnamon, and nutmeg. Mix until combined. Stir in almond flour until incorporated (mixture will be grainy). Add in eggs 1 at a time, beating well after each addition with an electric mixer. ready time. 50 min. Keto UpsideDownAlmondPlumCake. 9 ratings. This moist, tender cake has a stunning presentation and is full of rich almond and butter flavor! It is the perfect cake for a wonderful afternoon snack with coffee or tea. side shot of nectarine plumupsidedowncake. I like this cake even better the second day, when the cake has absorbed even more of the caramel and juices, though it is prettiest on the first. Feel free to trade the plums and nectarines for peaches, apricots or cherries, or even ripe pears. Gently pour the hot sugar syrup over the plums, swirling a bit to spread the hot syrup if necessary, then set aside. Make Your Cake Batter. In a medium bowl, whisk together the flour, almond flour, salt, baking soda, and baking powder. plumupside-downcake, almondcake recipe, spiced cake, fall baking, easy plumcake. Prep Time. 25 minutes.A close-up view of a freshly baked plumupsidedowncake on a plate, with a slice cut out to show the moist, yellow cake crumb beneath the dark, caramelized plum topping. For the cake: Whisk the flour, almonds, baking powder, allspice, baking soda, cinnamon and salt together in a medium bowl. Beat the sugar and butter together in a large bowl with an electric mixer on medium-high speed until light and fluffy, about 3 minutes. Toss sliced plums with cornstarch. Arrange it decoratively into greased cake pan. Pour batter over sliced plums and spread it evenly. Bake for 40 minutes or until toothpick inserted in center comes out clean. Completely cool the cake before turning it upside-down on a cake stand. What is an Upside-DownPlumAlmondCake?The thing I love about upsidedowncakes is that they look so unassuming until you flip them and reveal the stunning fruit bottom, and this Upside-DownPlumAlmondCake is no different!