Viral TikTok Olive Oil Cake (One Bowl, No Mixer, Still Moist on Day 5)

Ingredients

• Wet ingredients
• 3 large eggs, at room temperature — the most important temperature note in this recipe. Eggs at refrigerator temperature don't emulsify well with olive oil (oil and water don't mix; eggs are the emulsifier). Cold eggs cause the batter to look broken and greasy before the flour is added, which affects the final texture. Room temperature eggs coat the oil droplets evenly into a uniform batter. To warm eggs quickly: place them in a bowl of warm (not hot) water for 10 minutes before you begin.
• ¾ cup (150g) granulated sugar, plus 2 tablespoons coarse/turbinado sugar for the top — the 2 tablespoons of coarse sugar on the surface before baking is the step that creates the crackly, glassy top that TikTok is obsessed with. The coarse sugar crystals don't fully dissolve during baking; they melt slightly at the surface, setting into a thin, crunchy shell. Turbinado is ideal (larger crystals, slight molasses note); demerara works the same way; regular granulated sugar will produce a less dramatic crust. Don't skip it.
• ¾ cup (180ml) good extra-virgin olive oil — the primary fat and the defining ingredient. See the olive oil note below for which type to use. Measure by volume (180ml = ¾ cup) or weight (roughly 160g), since olive oil is lighter than water. This is not the place for a light/pure olive oil — you want EVOO with actual flavor. That said, 'good EVOO' doesn't mean your most expensive bottle. A $10 bottle of reasonably fresh California or Italian EVOO is what this recipe needs; anything better is wasted in heat.
• ½ cup (120ml) whole milk — full fat. Skim or 2% milk has less fat, which means less richness and a slightly tighter crumb. Buttermilk is an excellent substitution (use the same quantity): the extra acidity reacts with the baking soda for a bit more lift, and the slight tang complements the olive oil's bitterness perfectly. If using buttermilk, the cake will be marginally taller and the crumb slightly more tender.
• 3 tablespoons (45ml) fresh orange juice — freshly squeezed from the same orange you zested. Bottled orange juice works in a pinch but lacks the bright, volatile aroma compounds that come through in a fresh-squeezed tablespoon. The juice adds both moisture and acidity: the acid reacts with the baking soda for additional rise and lightens the crumb. Lemon juice is an equal substitute and produces a more tart, brighter cake. For the classic Italian style, orange is the traditional choice.
• Zest of 1 large orange (about 1 tablespoon packed) — the real flavor driver. The zest contains the aromatic oils from the peel, which are responsible for the cake's citrus character. The juice contributes mostly acidity; the zest contributes flavor. Zest directly into the wet ingredients (not in advance), so the volatile oils don't dissipate. If using lemon, zest 2 lemons for the equivalent flavor intensity.
• ½ teaspoon pure vanilla extract — background depth. It doesn't make the cake taste like vanilla; it rounds out the edge of the olive oil and brings the citrus flavor forward. Don't skip it even if it seems minor.
• Dry ingredients
• 1½ cups (190g) all-purpose flour — spooned into a measuring cup and leveled, or weighed. Avoid packing the flour, which adds up to 20–30g more than intended and produces a denser, drier cake. If you have a scale, use it: 190g is exact.
• 1½ teaspoons baking powder — the primary leavener. Not double-acting (which would be fine too); just standard baking powder.
• ¼ teaspoon baking soda — the secondary leavener, specifically reacting with the acidic components (orange juice, buttermilk if using). It produces a slightly larger, faster CO2 release than baking powder alone, giving the crumb a slightly more open structure. Don't increase this amount — too much baking soda produces a soapy flavor and a yellowed cake.
• ¾ teaspoon fine sea salt (or ½ tsp table salt) — olive oil cake needs slightly more salt than a typical butter cake because olive oil's natural bitterness requires balancing. Under-salted olive oil cake tastes flat. Don't reduce this.

Instructions

1. 1.Prepare the pan and oven. Preheat to 350°F (175°C). Coat the inside of a 9-inch round cake pan generously with olive oil (use a pastry brush or your fingers to coat every surface, including the sides). Cut a circle of parchment to fit the bottom, press it in, and brush the parchment with olive oil too. The double layer of oil coating prevents sticking and adds a subtle savoriness to the crust that butter greasing doesn't produce.
2. 2.Zest into sugar first (pro tip). Before anything else, add the orange zest directly to the ¾ cup of granulated sugar in a large bowl and rub them together with your fingertips for 30–60 seconds until the sugar looks slightly clumped and faintly orange, and you can smell the citrus release. This breaks open the oil glands in the zest and bonds the fat-soluble aromatic compounds to the sugar crystals, so the citrus flavor disperses evenly throughout the entire batter rather than clustering in spots. It's the single step that separates a fragrant olive oil cake from a merely decent one.
3. 3.Whisk the eggs and sugar. Crack all 3 room-temperature eggs into the bowl with the zested sugar. Whisk vigorously by hand for 90 seconds to 2 minutes — you're looking for the mixture to turn pale yellow and thicken slightly. This step dissolves the sugar partially and introduces some air, which lightens the crumb. Don't skip the whisking in favor of just stirring; an undermixed egg-sugar base produces a denser, tighter cake.
4. 4.Add the olive oil. While whisking, stream the ¾ cup olive oil into the egg-sugar mixture in a thin, slow stream — the same way you'd make a vinaigrette. Whisking continuously while the oil is added creates a light emulsion. If you dump the oil all at once and stir, the batter will look separated and greasy going into the pan, and the final texture will be slightly heavier. Thirty seconds of patient streaming is the difference.
5. 5.Add the liquid aromatics. Add the milk, orange juice, orange zest, and vanilla extract to the bowl. Whisk to incorporate, about 20 seconds. The batter at this stage looks quite thin and very fragrant — that's correct. It should smell strongly of citrus from the zest.
6. 6.Add the dry ingredients — fold, don't mix. Sift or whisk together the flour, baking powder, baking soda, and salt in a separate bowl, then add all at once to the wet ingredients. Using a flexible spatula, fold in wide, sweeping under-and-over strokes — 15 to 18 strokes total. Stop the moment you can no longer see dry flour streaks. The batter may look barely combined; that's fine. Over-mixing develops gluten strands, which tightens the crumb and can produce a gummy, dense texture. This is the one step where restraint matters.
7. 7.Pour and top with sugar. Pour the batter into the prepared pan and tilt the pan to level it (the batter is thin enough to self-level; don't spread it with a spatula, which can deflate the structure). Scatter the 2 tablespoons of turbinado sugar evenly across the entire surface, including the edges. Don't press it down — just scatter. The sugar needs to sit loose on the surface to set into a crust.
8. 8.Bake. Set the pan on the center rack and bake for 40 to 45 minutes. Start checking at 43 minutes: insert a toothpick in the center — it should come out with moist crumbs clinging to it, not wet batter, not completely clean. A completely clean toothpick means the cake is past its peak moisture. The top should be deep golden-brown (darker than you'd expect from a butter cake) and the sugar should have set into a crackly shell. The edges should have pulled away slightly from the sides of the pan. If the top is browning too fast before the center is set, tent loosely with foil and continue baking.
9. 9.Cool before turning out. Place the pan on a wire rack and let it cool for 20 minutes before attempting to unmold. This rest allows the structure to set — a too-warm olive oil cake is fragile and will crack when inverted. After 20 minutes, run a thin offset spatula or butter knife around the edge of the pan, then invert onto a second rack, peel off the parchment, and flip right-side up. Cool at least another 20 minutes before cutting. Cutting a warm olive oil cake produces a gummy, dense slice; fully cooled, the crumb is springy and cohesive.