Recipe Steps steps 7 1 h
Preheat your oven to 300F/150 C and line an 8 inch (20 cm) springform pan with parchment paper. Chop the chocolate into fine chunks and add to a bowl. Add the ghee.
Place the bowl over a double-boiler and stir until fully melted. Alternatively, you can melt the ghee and chocolate in the microwave in 20-second increments. Remove the bowl from the double-boiler or microwave and let the mixture cool to room temperature.
While the chocolate is cooling, crack the eggs and place the egg whites in the bowl of a stand mixer. Beat at medium-high speed until soft peaks form. Add the erythritol gradually and keep beating until stiff peaks.
Add the yolks and espresso powder to the bowl with the chocolate mixture. Whisk to combine. Make sure the chocolate isn’t hot to avoid cooking the egg yolks.
Add a third of the whipped egg whites to the chocolate mixture and combine. Add the remaining egg whites and gently fold until a homogeneous mixture forms. Don’t whisk or stir vigorously to avoid deflating the batter.
Pour the batter into the prepared springform pan and transfer to the oven. Bake for 40-45 minutes or until an inserted toothpick comes out dry. The cake will rise in the oven then deflate as it cools.
Let the cake cool completely before removing it from the pan. Dust with cacao powder and transfer to a serving plate. Slice into 8 slices and serve.