Brownies reward restraint. Mix too vigorously and they head towards cake; keep baking until the centre resembles a dry sponge and you lose the dense, rich texture that made you want a brownie in the first place. A good olive oil brownie should have set edges, a tender centre and a chocolate flavor strong enough to hold its own.
Extra virgin olive oil works beautifully in a brownie, provided the recipe is balanced for it. It replaces the role of butter as a principal fat, but it brings its own aromatic character. A mellow, fruity oil is usually easier to pair with chocolate than one whose peppery bitterness is very pronounced.
Ingredients for a 20 cm square tin
This yields around nine squares, depending on how generously you cut them:
- 180 g dark baking chocolate, ideally in roughly the 65–75% cocoa range.
- 85 g extra virgin olive oil with a balanced flavor.
- 135 g caster or fine granulated sugar.
- 3 medium eggs.
- 80 g plain flour.
- 20 g unsweetened cocoa powder.
- A generous pinch of fine salt.
- Optional: 60 g chopped walnuts.
You will also need baking parchment, a saucepan or microwave-safe bowl, a mixing bowl, a whisk and a spatula. This recipe contains egg and wheat gluten, and walnuts if added. Check the chocolate and cocoa labels for further allergens or possible cross-contact when baking for someone with food allergies.
A method designed to stay fudgy
Heat the oven to 175°C conventional, or adjust to your fan oven according to its behaviour. Line the tin with parchment, leaving some overhang so you can lift out the finished brownie. If you use a tin much larger than 20 cm, the batter will spread thinly and bake more quickly.
Melt the dark chocolate gently, either in short microwave bursts or over a pan of hot water. Stir in the olive oil, then leave it until warm rather than hot. You want the mixture fluid enough to fold into the batter without suddenly heating the eggs.
Whisk the eggs with the sugar for around two minutes until uniform and slightly lighter. You do not need to whip them into a foamy mousse. Pour in the cooled chocolate-and-oil mixture, stirring just enough to combine. Sift the flour, cocoa and salt over the batter and fold gently with a spatula. Stop when you can no longer see dry streaks. Add the walnuts now if using them.
Spread the batter evenly in the tin and bake for approximately 22–28 minutes as a starting range. Ovens, tins and rack positions vary, so begin checking near the earlier end. The perimeter should look set, while the middle can still appear slightly soft. A skewer inserted near the centre should pick up moist crumbs, not a ribbon of uncooked batter. Do not wait for it to emerge completely clean as you might for a plain sponge cake.
Cool the brownie fully in its tin. The centre firms as the structure settles, making it easier to cut clean squares. If you slice it straight from the oven, you may mistake a still-fragile hot crumb for underbaking and lose the distinctive dense texture.
Why the chocolate percentage changes the result
A 70% dark couverture is a useful middle ground: plenty of cocoa flavor without being as challenging as unsweetened 100% chocolate. If you switch to milk chocolate, the amount of sugar and milk solids changes. Simply replacing dark with milk chocolate gram for gram is likely to make a sweeter, differently textured brownie. White chocolate is a more radical alteration still and requires a differently balanced recipe.
The 20 g of cocoa powder brings extra chocolate depth without adding the same amount of cocoa butter as another 20 g of bar chocolate would. If you use a natural, non-alkalized cocoa powder, its flavor may differ from a Dutch-processed one. For this brownie, where there is no baking powder or bicarbonate to adjust, the difference is primarily sensory rather than a simple matter of raising the batter.
Chocolates Artesanos Isabel sells 70% dark couverture drops and pure cocoa powder that fit the style of this bake. The manufacturer also discusses its use of extra virgin olive oil in its confectionery. These facts make for useful ingredient context, though you should verify actual stock in El Mercado de Origen before attaching purchase links.
Adjusting the next batch intelligently
If your brownies are dry, look first at baking time, pan size and flour measurement. If they remain gooey even after cooling, check whether the batter was too deep for your tin or your oven runs cooler than its dial suggests. Do not assume every soft centre is perfect; completely raw batter is different from a moist, set crumb.
If olive oil dominates, choose a milder variety next time rather than cutting out half the fat and expecting the same brownie. A little orange zest or a few walnuts can add contrast, but this cake is most satisfying when the chocolate remains the main event.
You can serve the squares plain, with a spoonful of yoghurt or alongside berries. The first successful batch is a useful reference point: next time, change just one variable — oil, chocolate percentage or a few minutes in the oven — and taste what really changed.
