Classic Oat Cake

Moist, hearty, and brimming with comforting flavors, this Classic Oat Cake is the ultimate dessert for rustic simplicity and wholesome ingredients. Made with tender rolled oats softened in boiling water, this cake achieves a uniquely rich texture that’s both satisfying and indulgent. Warm cinnamon and optional crunchy walnuts add layers of flavor and texture, while a combination of brown sugar and vanilla creates an irresistible hint of caramel sweetness. With just 15 minutes of prep time and a single bowl required for mixing, this recipe is as easy as it is delicious. Perfect for gatherings, coffee breaks, or an everyday treat, this 9x9 cake strikes the perfect balance between homey charm and understated elegance.

Nutriscore Rating: 52/100

Prep Time:15 mins

Cook Time:35 mins

Total Time:50 mins

Servings: 8

Ingredients

• 1.5 cups Rolled oats
• 1.25 cups Boiling water
• 1.5 cups All-purpose flour
• 1 teaspoon Baking soda
• 0.5 teaspoon Salt
• 1 teaspoon Ground cinnamon
• 0.5 cup Unsalted butter, softened
• 1 cup Brown sugar
• 0.5 cup Granulated sugar
• 2 pieces Eggs, large
• 1 teaspoon Vanilla extract
• 0.5 cup Walnuts, chopped (optional)

Directions

Step 1

Preheat your oven to 350°F (175°C) and grease a 9x9 inch baking pan.

Step 2

In a medium bowl, combine the rolled oats with boiling water. Stir and let sit for 20 minutes to soften the oats.

Step 3

In a separate bowl, whisk together the all-purpose flour, baking soda, salt, and ground cinnamon. Set aside.

Step 4

In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy.

Step 5

Beat in the eggs, one at a time, then stir in the vanilla extract.

Step 6

Add the softened oat mixture to the creamed butter and sugar mixture, stirring until well combined.

Step 7

Gradually fold in the dry ingredients, mixing just until incorporated.

Step 8

If using, gently fold in the chopped walnuts.

Step 9

Pour the batter into the prepared baking pan, smoothing the top with a spatula.

Step 10

Bake in the preheated oven for 30-35 minutes or until a toothpick inserted into the center comes out clean.

Step 11

Allow the oat cake to cool in the pan on a wire rack before cutting into squares and serving.

Nutrition Facts

Serving size	(1135.5g)

Amount per serving	% Daily Value*
Calories	3468.2

Total Fat 156.2g	0%
Saturated Fat 69.5g	0%
Polyunsaturated Fat g
Cholesterol 630.3mg	0%
Sodium 2642.2mg	0%
Total Carbohydrate 472.7g	0%
Dietary Fiber 23.2g	0%
Total Sugars 243.7g
Protein 62.2g	0%

Vitamin D 80IU	0%
Calcium 358.1mg	0%
Iron 19.4mg	0%
Potassium 1340.3mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 39.7%

Protein: 7.0%

Carbs: 53.3%