Blackberry Cake

I first tried this cake when I wanted to get rid of some frozen blackberries that had been sitting in the freezer for about a month, and I didn’t want to see them anymore. I thought that since I was going to get to work, I might as well try a combination of chocolate, fruit, and a quick base – something that wouldn’t take all day but would turn out delicious, without any fuss or complications. I made it in a rather small pan (about 22x22 cm), since we aren’t an army at home, but I regretted it after I saw how quickly it disappeared from the table. The first time, I put too much sugar over the fruit, and it stuck to the edges, but nobody said anything, so it works anyway.

Preparation time: about 15 minutes, not enough to chop onions or ponder
Baking time: 30-40 minutes, depending on the oven
Servings: about 9, if you cut decent-sized squares
Difficulty: it’s one of the easiest cakes, suitable even for beginners

What I put in it (all quantities are for that square pan of 22x22 cm):

3 eggs – I use them to bind the batter; they come out airy if beaten well with the sugar
130 g sugar – I put 70 g in the batter, the rest I sprinkle over the butter in the pan and over the fruit
80 g all-purpose flour – to prevent the batter from becoming too dense; whole wheat works too, but it won’t be as fluffy
1 teaspoon baking powder – to avoid it coming out like a pancake
1 teaspoon cocoa powder – not for color, it actually adds a slight bitterness that balances the fruit
100 g dark chocolate – I grate it (on the large grater), less works too, but I don’t skimp
200 g frozen blackberries – I put them in directly frozen; there’s no need to thaw them
50 g butter – just for greasing the pan, plus some flavor in the sugar crust
grated zest of one lemon – not optional, it elevates everything

1. I beat the eggs with 70 g of sugar in a fairly large bowl, using a whisk or mixer if I’m in a hurry. They should turn whitish, and you shouldn’t feel any granules if you dip your finger in (I look, I don’t taste, so don’t scold me for that).

2. I add the grated lemon zest to enhance the aroma. I never put more than I mentioned, as it can taste strange.

3. I mix the flour separately with the baking powder and cocoa (in a small bowl or directly over the eggs if I don’t want to dirty extra dishes). I gradually add it to the egg mixture, stirring with a spatula or wooden spoon. I don’t mix too much, just enough to combine, or it will deflate.

4. Finally, I add the grated chocolate and mix quickly. It doesn’t need to melt, just to be distributed somewhat evenly.

5. I prepare the pan: I grease it with butter (I use almost all the butter to make it rich, as that’s how you get that good crust on the bottom) and sprinkle the remaining sugar over the butter. I try to cover the entire bottom; it doesn’t need to be perfect.

6. I place the frozen fruit directly, spreading them out somewhat so they don’t all crowd into one corner. If I add too many, the cake becomes too soggy; if I add too few, you won’t taste anything. 200 g is just right.

7. I pour the batter over the fruit. It’s quite thick, so I spread it with a spatula or spoon as much as I can. It doesn’t need to be as smooth as a loaf, but it shouldn’t flow like a batter either, so if it’s too thick, I can add a tablespoon or two of milk. I’ve never done it, but I’ve seen others do it successfully.

8. I put the pan in the preheated oven, about 175°C, without ventilation. It bakes for 30 to 40 minutes. For me, it’s done after 35 minutes. I check it with a toothpick in the center, not at the edge, and if it comes out clean, I take it out immediately.

9. I let it cool in the pan; I don’t rush to take it out because it might break. Once it’s no longer hot, I cut it into squares. I dust it with granulated or powdered sugar, depending on my mood (the truth is I don’t always do this step, but it looks nicer).

Why do I keep making this cake over and over? It’s exactly the kind of hassle-free dessert that saves the day when you have fruit you want to get rid of or when someone comes over and you need to whip up something sweet quickly that doesn’t look like a last-minute dessert. Chocolate and fruit is a classic combination that rarely fails, and if you don’t add too much sugar, it doesn’t turn out cloyingly sweet. It works anytime, with any tart fruit (I’ve also tried it with sour cherries, and it’s amazing). It’s good both cold and warm. Plus, you don’t need expensive ingredients or complicated techniques.

Tips

Don’t try to beat the eggs with the mixer on high speed until stiff peaks form; it’s not necessary – just enough to combine well with the sugar.

If you have milk chocolate instead of dark, reduce the sugar in the batter, or it will be too sweet.

Use real butter for greasing the pan, not margarine or oil – the crispiness on the bottom is much tastier with butter.

If your blackberries are large and icy, shake them well before adding them so they don’t release too much water.

Substitutions

All-purpose flour can be replaced with a gluten-free blend (from the store), but it might turn out a bit crumbly. With whole wheat flour, the texture is denser – it didn’t wow me, but it’s doable.

Fruits – anything works: sour cherries, blueberries, raspberries, even diced pears or apples. The important thing is that they shouldn’t be too watery, or you’ll end up with a pudding, not a cake.

Chocolate – if you don’t feel like grating it, break it into small pieces or use baking chips. In a pinch, you can also add extra cocoa powder, but it won’t be the same.

Variations

You can add some chopped nuts or roasted hazelnuts to the batter for extra texture.

If you like, you can add a bit of cinnamon to the batter (especially good with apples or pears).

If you want to make it healthier, you can use powdered sweetener (I’ve tried erythritol), but the taste changes a bit; it’s not as “round.”

Serving

I serve it plain, with coffee or tea, but it also goes well with a dollop of Greek yogurt or some whipped cream (not plant-based cream, that has no flavor).

It’s also great with vanilla ice cream on top when it’s warm, but honestly, it rarely makes it to that stage unless I make a double batch.

Frequently Asked Questions

1. Can I use fresh fruit instead of frozen?
Yes, but the cake might turn out a bit drier, so you can sprinkle the fruit with a bit of lemon juice and sprinkle 1-2 tablespoons of sugar over them before adding the batter. With frozen fruit, the batter stays moister.

2. If I don’t have baking powder, can I use baking soda?
Yes, but it needs to be neutralized with a bit of vinegar or lemon juice (about half a teaspoon). Be careful not to add too much, as it changes the taste.

3. Can I make it in a larger pan?
Yes, but double the quantities if you want to use a regular baking tray (about 30x35 cm). The baking time will increase by about 10 minutes.

4. My batter turned out a bit gummy. Why?
Most likely, you mixed too much at the end or added too much flour. 80 g is enough, and when combining dry ingredients with wet ones, don’t overdo it.

5. I don’t have a mixer; can I do everything by hand?
Absolutely, that’s fine, just make sure to mix the eggs and sugar as well as possible. Everything else can be done manually.

Nutritional values (estimate for one serving, from 9 pieces):

About 210 kcal per serving. Carbohydrates: around 30g, depending on how much sugar you add at the end. Protein: ~4g per piece, from the eggs and flour. Fat: about 7-8g, including the chocolate and butter on the bottom. It has some fiber from the fruit (especially the blackberries), but if you use whole wheat flour or add nuts, it increases slightly. Overall, it’s not a calorie bomb unless you eat half the tray by yourself. The sugar isn’t excessive, especially if you reduce the dusting.

How to store and reheat

This cake keeps well in the fridge, in a container or even covered with foil directly in the pan. It lasts 3-4 days without issues. If you want to restore its fresh texture, heat a piece for 10 seconds in the microwave or 2-3 minutes in the preheated oven. When you take it out of the fridge, the powdered sugar melts, so only add it before serving. The leftovers (which are rarely left) are also good cold, alongside morning coffee.

 Ingredients: 3 eggs, 130 g sugar, 80 g flour, 1 teaspoon baking powder, 1 teaspoon cocoa, 100 g dark chocolate, 200 g blackberries, 50 g butter, grated zest of one lemon

 Tags:  blackberry cake fruit cake