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Baked Oatmeal Cake

A tender, moist cake that tastes like warm cinnamon-oatmeal comfort. Baked in one bowl and ready in 35 minutes, perfect for breakfast or a simple dessert.

Total time
40 min
Servings
8
Calories
310
Protein
6g
Baked Oatmeal Cake
comfortcozyamericanvegetariansofttendercrumblybreakfast

Ingredients

  • 2 cups rolled oats (old-fashioned)
  • 1.5 cups all-purpose flour
  • ¾ cup brown sugar, packed
  • ½ cup butter, melted
  • 2 whole eggs
  • 1.5 teaspoon ground cinnamon
  • 1 teaspoon baking powder
  • ¼ teaspoon salt

Instructions

  1. 1

    Set the oven to 350°F and wait until the indicator light or beep tells you it has finished heating, about 10 minutes.

  2. 2

    Grease a 9-inch square baking pan by brushing melted butter or oil all over the inside surface, including the bottom and all four sides.

  3. 3

    Pour the 2 cups of rolled oats, 1.5 cups of flour, 0.75 cup of brown sugar, 1.5 teaspoons of cinnamon, 1 teaspoon of baking powder, and 0.25 teaspoon of salt into a large mixing bowl.

  4. 4

    Stir the dry ingredients with a wooden spoon or whisk until the brown sugar is evenly mixed throughout and there are no lumps of cinnamon or baking powder visible, about 1 minute.

  5. 5

    Pour the 0.5 cup of melted butter and the 2 eggs into the bowl with the dry ingredients.

  6. 6

    Stir everything together with a wooden spoon until no streaks of flour or dry oats remain and the batter looks uniform and slightly wet, about 1 minute—do not overmix.

  7. 7

    Pour the batter into the prepared pan and use the back of a spoon or an offset spatula to spread it into an even, flat layer, reaching all four corners.

  8. 8

    Place the pan in the preheated 350°F oven on the middle rack and bake for 25–30 minutes until a toothpick inserted into the center comes out with just a few moist crumbs clinging to it.

  9. 9

    Remove the pan from the oven and set it on a counter or cooling rack for 10 minutes so the cake firms up enough to cut without crumbling.

  10. 10

    Cut the cake into 8 equal squares (cut 2 vertical lines and 3 horizontal lines to make a grid) and serve warm or at room temperature.

Tools you’ll need

  • 9-inch square baking pan
  • large mixing bowl
  • wooden spoon or whisk
  • spatula or spoon for spreading
  • toothpick
  • oven
  • cooling rack or countertop

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