This rich chocolate cake has a texture similar to classic chocolate cake but is made with just 2 ingredients. No flour, refined sugar, dairy, butter or oil.
6ounces (170g)dark chocolate chips, around 60% cocoa, approximately 1 cup but its best to use a scale, see notes regarding chocolate
4largeeggs, brought to room temperature, whites and yolks separated
Instructions
Preheat the oven to 350°F (177°C). Grease a 6-inch cake pan with non-stick cooking spray and line the bottom with a parchment round. You do not need to line the sides but make sure they are well greased.
Add chocolate chips to a microwave safe bowl. Microwave in 30-second intervals, stirring in between with a spatula, until the chocolate is completely melted and smooth. Alternatively, you could do this over low heat in a double boiler on the stove.
Place the egg whites into a clean mixing bowl of a stand mixer. Using the wire whisk attachment, whip the whites at medium high speed until they form stiff peaks.
Add the yolks in, beating at high speed until the yolks are fully combined and you have a uniform yellow mixture (this should only take a few seconds). The egg mixture should still look very light and fluffy, though it won’t have medium peaks anymore. When you lift the beater, the egg mixture that drips off should be thick enough that it stays on top and doesn’t sink down.
Pour in the melted chocolate. Use a spatula to gently fold in the chocolate, starting from the bottom of the mixing bowl where most of the chocolate ends up, and bringing it to the top. You want to mix only until the chocolate is fully incorporated (i.e., there are no globs or streaks of melted chocolate not mixed in). You do not need to mix until the batter is uniform in color. Doing so will deflate the egg mixture too much. The cake batter should look thick and fluffy and be light brown in color. The key to creating a light and airy cake is keeping the egg mixture light. If you overmix, the cake will come out dense, like a classic flourless chocolate cake.
Pour the batter into the prepared baking pan, spreading it evenly across with a spatula. Bake for 30 minutes, or until the top is set, slightly cracked, and puffed up.
Allow the cake to cool in the pan for about 20-30 minutes before removing. It will deflate a little as it cools. Use a thin spatula to loosen the cake from the sides and then unmold the cake. You can decorate the cake before serving. This cake is best enjoyed warm. When it is eaten warm, the cake is soft and moist. When it is cooled, the chocolate will firm up a little, causing the cake to be drier and look paler in color. If you reheat the cake, it will turn soft and moist again and turn a more rich chocolate brown color. I usually reheat a slice for about 10-15 seconds in the microwave. Store uneaten cake in an airtight container in the fridge or freezer and reheat before eating.
Notes
While this cake has a crumb similar to classic chocolate cake, the cake won't look exactly the same. Because the cake structure is created with the egg mixture, you will have some uneveness in the cake and places where the cake is more airy and some areas where it is more dense. I like to think of this more like a quick snack cake meant for enjoying at home and not a cake to bring to a party.
Chocolate note: It is best to measure the chocolate with a scale if possible. Depending on the brand and size of the chocolate chips, the amount that fits in 1 cup can vary a lot and too much chocolate will cause the cake to be more dense. I used dark chocolate chips that contain around 60% cocoa. I tested this cake with Ghiradelli chocolate chips 60% (contains dairy), Hu dark chocolate gems* (sweetened with unrefined coconut sugar and dairy free) and Guittard dark chocolate chips* (dairy free but does contain regular sugar). Keep in mind that the higher the percentage of cocoa, the less sweet the cake will be.
*These product links are affiliate links. This means I earn a commission from qualifying purchases.
The cake is not very sweet as it is only sweetened with dark chocolate. If you prefer sweeter, you can try making the cake with semisweet chocolate or add a chocolate frosting.
Optional chocolate frosting:
½ cup dark chocolate chips
¼ cup (2 fluid ounces) canned coconut milk (can substitute with heavy cream if you don't need the cake to be dairy-free)
Add chocolate chips to a medium bowl and set aside. Heat coconut milk in a small pot or pan over medium low heat. Heat until simmering. Pour hot coconut milk over chocolate chips. Let sit for 60 seconds then gently mix until chocolate is completely melted.
Frost the surface of the cake with ganache. If desired, you can also garnish with chocolate curls.
Estimated nutrition does not include optional frosting.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.