Fresh blueberries and a secret ingredient make this Blueberry Mystery Cake irresistible. This small batch cake is sweet, but not quite as sweet as a fruit cobbler.
Blueberry Mystery Cake
We love sweet and light treats with fresh muffins. Farmhouse Style Blueberry Muffins is one of my favorite baked goods, so when a friend sent this cake recipe from her family I couldn’t wait to try it! We love this blueberry cake warm right out of the oven or cool later in the week.
Fresh lemon juice squeezed over fresh blueberries gives a slight twist to this cake that is so good! My husband loved this dessert, but couldn’t quite identify the lemon. I wouldn’t have been able to either if I hadn’t made the recipe. The fresh fruit flavors are so bold and the sweet cake batter topping makes the perfect dessert or brunch treat!
Pouring enough boiling water to wet the top of the batter makes a light layer of crunch that is so unique. This blueberry cake truly tastes like it came from a bakery, but it is very easy to make at home!
Can Frozen Blueberries Be Used?
Yes, frozen blueberries can be used and often make baking more convenient because they can be stored so much longer than fresh berries on the counter or in the refrigerator. However, I prefer to use fresh berries in this recipe.
Can This Blueberry Cake Be Frozen?
I would not recommend freezing this cake for long periods of time because there is a good bit of liquid that would likely create freezer burn with mixed with air over time. We also love the flavors and texture of this cake when it is fresh! Since it is a small batch a few people can easily eat the entire cake in a couple of days.
How to Keep Blueberries From Sinking to the Bottom
Reserve one or two tablespoons of flour from the amount called for in the recipe and gently coat blueberries in that flour. My mom told me this is the secret to keeping blueberries from sinking to the bottom of baked goods.
Tips for Making Blueberry Mystery Cake
- Wash fresh blueberries and allow to dry
- Cut lemon in half and remove seeds before squeezing as evenly as possible over top of the blueberries
- Mix cake batter together – it will be thick
- Carefully spread dollops of cake batter as evenly as possible over the berries while keeping the berries in an even layer on the bottom of the pan
- Topping mix is dry and can easily be sprinkled over the cake batter
- Have the cake assembled before pouring boiling water over the top
- Pour boiling water slowly and allow as much of the topping as possible to become wet
- A wet topping will create a perfect crust
- Too much boiling water will make a soppy cake that tastes amazing, but might not look great or easily cut into square pieces
Other Easy Desserts with Fruit
Printable Recipe for Blueberry Mystery Cake
Blueberry Mystery Cake
Fresh blueberries and a secret ingredient make this Blueberry Mystery Cake irresistible. This small batch cake is sweet, but not quite as sweet as a fruit cobbler.
Ingredients
Cake
- 2 cups fresh blueberries
- 2 tablespoons fresh lemon juice
- 3/4 cup sugar
- 3 tablespoons butter melted
- 1/2 cup milk
- 1 cup sifted flour
- 1 teaspoon baking powder
- 1/2 teaspoon salt
Topping
- 1/2 cup sugar
- 1 tablespoon corn starch heaped
- 1/2 teaspoon salt
- 1/2 cup boiling water
Instructions
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Grease 8 x 8 baking dish and preheat oven to 375 degrees F.
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Wash and drain berries. Place in baking dish and sprinkle with lemon juice.
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Mix sugar, butter and milk.
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Sift flour, baking powder and salt together and add to butter mixture.
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Carefully spread as evenly as possible over berries.
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Mix topping ingredients sugar, corn starch and salt. Sprinkle over batter.
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Carefully pour boiling water to moisten all of topping. Do NOT stir.
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Bake for 30 minutes at 375 degrees F. Reduce oven temperature to 350 degrees F for the last 15 - 20 minutes.
Shared on Weekend Potluck and Meal Plan Monday
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