Chocolate Greek Yogurt Cake: An Easy Recipe Without Sour Cream
Plain Greek yogurt gives this chocolate cake moisture and a mild tang without sour cream. The recipe uses natural cocoa powder, baking soda, and baking powder for a tender crumb and straightforward rise. The batter is thin, the mixing is simple, and the cake needs no frosting, though a quick chocolate glaze is an easy extra.
Ingredients
For one 8-inch square cake:
- 1½ cups (190 g) all-purpose flour
- ¾ cup (150 g) granulated sugar
- ½ cup (45 g) natural unsweetened cocoa powder
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- ½ teaspoon fine salt
- 2 large eggs, at room temperature
- ¾ cup (170 g) plain Greek yogurt, preferably whole-milk
- ⅓ cup (80 ml) neutral oil, such as canola or vegetable oil
- 2 teaspoons vanilla extract
- ½ cup (120 ml) hot water or hot brewed coffee
For the optional glaze:
- ½ cup (85 g) semisweet chocolate chips
- ¼ cup (60 ml) heavy cream
Make the cake
- Heat the oven to 350°F (175°C). Grease an 8-inch square metal baking pan and line the bottom with parchment paper, leaving a little overhang on two sides for lifting the cake out.
- In a large bowl, whisk together the flour, sugar, cocoa, baking soda, baking powder, and salt.
- In a second bowl, whisk the eggs, Greek yogurt, oil, and vanilla until smooth. Add the mixture to the dry ingredients and stir just until no dry flour remains.
- Slowly pour in the hot water or coffee while stirring. The batter will be thin. Pour it into the prepared pan.
- Bake for 32 to 38 minutes, checking near the shorter end of the range. The cake is done when a toothpick inserted near the center comes out with a few moist crumbs but no wet batter. Let it cool in the pan for 15 minutes, then lift it out or leave it in the pan to cool completely.
- If making the glaze, put the chocolate chips in a heatproof bowl. Heat the cream until steaming, then pour it over the chocolate. Let it stand for 2 minutes and stir until smooth. Cool the glaze briefly, then spread it over the cooled cake.
Why Greek yogurt works
Greek yogurt brings both moisture and acidity. Its acidity reacts with baking soda to produce carbon dioxide, which helps the cake rise. Yogurt also contributes tenderness and a slight tang that balances the cocoa. Because Greek yogurt is thick, it adds moisture without making the batter as loose as milk alone might.
Use plain, unsweetened yogurt. Flavored or sweetened varieties can change the cake’s taste and sweetness. Whole-milk yogurt gives a tender result, though low-fat plain Greek yogurt can work. If the yogurt is exceptionally thick, stir it well before measuring. Regular plain yogurt is thinner; it may still work, but the batter will be looser.
The recipe does not depend on yogurt as the only source of lift. Baking powder provides additional leavening, which helps the cake rise evenly and reduces the risk of a heavy crumb. Measuring the flour accurately matters too: spoon it into the measuring cup and level the top, or weigh it. Packing flour into a cup can add too much and make the cake dense.
Choosing cocoa powder
This recipe is designed for natural unsweetened cocoa powder, which is acidic. Combined with acidic yogurt, it suits the baking soda in the recipe. Dutch-process cocoa has been treated to reduce its acidity, so it is less suited to a formula that relies on the cocoa’s acidity to balance baking soda.
For the most predictable result, use natural cocoa and keep the listed leaveners as written. If you have only Dutch-process cocoa, the cake may still bake, but its rise and texture can differ. A recipe formulated specifically for Dutch-process cocoa is a better choice than changing leavening amounts by guesswork.
Hot water helps disperse the cocoa and makes the batter easier to mix. Hot coffee is an option when you want to deepen the chocolate flavor; it should not make the finished cake taste strongly of coffee. Use freshly brewed coffee rather than instant granules added dry.
Keeping the cake tender
Once the flour goes into the bowl, stir only until the ingredients come together. Vigorous or prolonged mixing develops gluten in the flour, which can make a cake chewy or compact. Small lumps are less troublesome than overmixing; most will disappear as the batter is stirred with the hot liquid.
The thin batter is intentional. Don’t add extra flour because it looks loose. Pour it carefully into the pan, and make sure the oven is fully heated before baking. Opening the oven door repeatedly can slow baking and affect the cake’s rise.
For an even result, use the pan size specified. A smaller pan makes the batter deeper and takes longer to bake; a larger pan makes a thinner cake that may finish sooner. Glass and ceramic pans also heat differently from metal. If you use one, begin checking early and judge doneness by the cake rather than relying on the listed time alone.
Check doneness before the cake dries out
Start checking at 32 minutes. Insert a toothpick into the center, where the cake takes longest to set. Wet batter on the toothpick means it needs more time; a few moist crumbs are a good sign to take it out. A completely clean toothpick can mean the cake has baked longer than necessary, though it is not a perfect test by itself.
You can also look for a center that springs back gently when pressed. The edges may begin to pull slightly from the pan, but don’t wait for them to shrink substantially. The cake continues cooking briefly from residual heat after it leaves the oven, so remove it when the center is set rather than waiting for it to feel firm throughout.
Let the cake cool before glazing. Warm cake can melt the glaze and make it run off the surface. For a simple finish, serve it plain with a dusting of powdered sugar or add the glaze after it has cooled.
Storage
Once completely cool, cover the cake or store it in an airtight container. It will keep at room temperature for about two days, or in the refrigerator for up to five days. Refrigeration can firm the crumb, so let a slice sit at room temperature before serving. The unglazed cake also freezes well: wrap individual slices or the whole cooled cake tightly, then thaw at room temperature while still wrapped.
The glaze is optional, but the cake is satisfying without it. Greek yogurt supplies the tang and moisture sour cream would provide, while natural cocoa, restrained mixing, and an early doneness check help keep the crumb soft.
