Spiced Plum Upside-Down Cake with Oats

I was trying to use up our plum harvest and became inspired to try and make a wholesome version of a pineapple upside-down cake using plums.

• Preparation Time: 30 mins
• Cooking Time: 50 mins
• Total Time: 1 hr 20 mins
• Calories: 280 Calories

Ingredients

• ½ cup butter, softened
• 1 cup brown sugar
• ½ cup white sugar
• 1 ½ teaspoons vanilla extract
• 1 teaspoon ground cinnamon
• 1 teaspoon ground nutmeg
• 2 tablespoons butter
• ¼ teaspoon ground allspice
• 1 ½ cups whole wheat flour
• 1 cup rolled oats
• 1 ½ teaspoons baking soda
• ½ cup boiling water
• 2 eggs, room temperature
• ½ teaspoon sea salt
• ¼ teaspoon ground cinnamon, or more to taste
• ¼ cup raw sugar
• 1 ½ cups diced plums

Recipe Instructions

Step 1

Preheat the oven to 350 degrees F (175 degrees C).

Step 2

Bake in the preheated oven until a toothpick inserted in the center comes out clean, about 50 minutes.

Step 3

Combine oats and water in a medium bowl. Let sit for 20 minutes.

Step 4

Combine brown sugar, 1/2 cup butter, white sugar, eggs, and vanilla extract in a large bowl. Add oatmeal mixture and mix until combined.

Step 5

Sift flour, baking soda, 1 teaspoon cinnamon, nutmeg, salt, and allspice together in a bowl. Add to oatmeal mixture.

Step 6

Place 2 tablespoons butter in a 9-inch square baking pan and melt in the preheated oven. Remove from the oven and sprinkle sugar and cinnamon on top. Sprinkle plums evenly over sugar. Pour batter over plums and spread evenly.