LC Decadent Chocolate Cake with Coffee Mousse

Tammy Brownlow


I saw a video of an amazing dessert on Facebook the other day and thought - how can I make this a low carb, and still decadent treat...

After making my changes and adding my own touches, I came up with this dessert. It would be perfect for date night, Valentines, birthdays, or any special occasion.

It is an amazing dessert with the rich flavors of dark chocolate and coffee - and it only has 5 net carbs per serving!!!

I know it has a few steps, but it is very easy, and well worth the time. Enjoy (:

★★★★★ 2 votes
40 Min
25 Min

Blue Ribbon Recipe

Notes from the Test Kitchen:
It's really hard to believe that this chocolate mousse cake recipe is low carb... it's so good! The dark chocolate cake is very rich. The mousse is creamy and filled with wonderful coffee flavor. What a special treat!



5 oz
dark chocolate
1/2 c
eggs, separated
3/4 c


egg yolks
1/2 c
1 tsp
xanthan gum
2/3 c
heavy whipping cream
1/2 tsp
1 Tbsp
instant coffee
1/2 Tbsp
unflavored gelatin powder
1 c
heavy whipping cream


sifted unsweetened cocoa powder


1In a glass bowl over simmering water (medium low heat), add broken up chocolate pieces and butter. Stir until melted.
2Remove from heat. Add egg yolks one at a time and stir with a whisk until combined. Add a pinch of salt and stir.
3In your mixing bowl, beat egg whites until thick. Slowly add Splenda and continue beating until stiff.
4Add a portion of the egg whites into the chocolate mixture. Fold gently until combined.
5Continue to add until incorporated and no egg whites are visible.
6Spread the chocolate batter into an 8" round, greased springform pan. Bake at 350 degrees for 20-25 minutes until done. Remove and allow to cool.
7For Mousse: In a saucepan add the egg yolks, vanilla with Splenda and stir with a whisk to combine until pale yellow.
8Add 2/3 cup heavy whipping cream, cook over medium heat until hot and beginning to thicken. Add xanthan gum. Sprinkle over the top gently and stir with a whisk to combine.
9When mixture is thick add instant coffee. Whisk to combine. Remove from heat and allow to cool.
10In a small bowl add gelatin to 2 tbsp water. Set aside to bloom.
11Place gelatin in a small saucepan over low heat and let gelatin dissolve.
12Pour over pudding mixture and stir to combine.
13In a mixing bowl, add 1 cup heavy whipping cream and beat until stiff.
14Fold whipping cream into coffee pudding mixture until combined a portion at a time.
15Spread whipping cream mixture (mousse) over cake. Refrigerate at least 4 hours before serving.
16To serve:

Run a warmed knife around dessert. Remove spring form pan and place on a dish. Sprinkle with cocoa powder and slice.
18Nutrition Info: calculated at

Calories 147
Calories from Fat 117
Total Fat 13.0g 20%
Saturated Fat 8.0g 40%
Cholesterol 86mg 29%
Sodium 64mg 3%
Potassium 55mg 2%
Carbohydrates 5.7g 2%
Dietary Fiber 0.3g 1%
Sugars 4.7g
Protein 2.3g

About LC Decadent Chocolate Cake with Coffee Mousse

Course/Dish: Cakes, Chocolate, Other Desserts
Main Ingredient: Eggs
Regional Style: American
Other Tags: For Kids, Healthy