Hi there!
I wanted to share the way i make my Black Forest Cake.
I like this recipe because it not too sweet.
Hope you enjoy this! 
Black Forest Cake
Chocolate Genoise:
- Eggs ————- 5
- Sugar ———— 120 grams OR 1/4 cup plus 2 tsp
- Butter (melted) — 22.5 grams OR 2 TBSP
- Vanilla extract —- 1 tsp
- Cake Flour ——– 105 grams OR 1 cup plus 2 TBSP (just about)
- Cocoa Powder —– 30 grams OR 1/4 cup
Fillings & Decoration:
- Whip cream —— 1 liter
- Sugar ———— 1 cup
- Maraschino Cherries — at least one jar
- Solid Dark Chocolate Bar — as needed
- Simple Syrup — as needed
PROCEDURE:
1) Preheat oven to 390F or 198C. Butter and flour the cake pan and set aside.
2) Whisk eggs and sugar in a steel or glass bowl over a pot of simmering hot water. Whisk until sugar is mixed well and the temperature reaches as hot as bath water.
3) Take the mixture away from hot water. Using an electric mixer with whisk attachment; whisk until it doubles in size. Do not stop whisking until it has stopped rising.
4) Fold in the melted butter very carefully.
5) Sift cake flour and cocoa powder together in a separate bowl. Fold in the flour mixture to the egg mixture. Be very gentle and do not deflate the batter.
6) Pour batter into pan carefully and bake at 390F (198C) for 10 to 15 mins. Do not open the oven door at all when the cake is baking. Cool the cake completely when done
7) Make whip cream: In a cold bowl, add in whipping cream. Using an electric mixer start whipping the cream and add the sugar in little sprinkle at a time while whisking. Cover and store in fridge when done making whipped cream
8 ) Make chocolate shavings: Take a vegetable peeler or small knife and start shaving or scrapping the chocolate bar. Make sure to work fast and not touch the shavings because the chocolate will start melting.
9) Divide the chocolate cake into three layers. Trim the top of the cake to an even flat surface
10) Brush simple syrup on the bottom layer. Place the layer down and pipe whip cream onto the cake layer. Place maraschino cherries.
11) Brush the second layer with simple syrup and place in on top of the bottom layer and make sure its aligned well. Repeat the step in #10
12) For the top layer brush with simple syrup. Pipe the whip cream nicely onto the top layer and smooth down the top.
13) Spread whip cream on to the sides of the cake and cover any holes and bare areas of cake.
14) Take chocolate shaving and using a spoon press the chocolate onto the sides of the cake. Cover all the sides really well.
15) Pipe spirals or roses on the top of the cake. Place cherries on the middles of the spirals. Sprinkle chocolate shaving on the top around the middle.
16) Store the finished cake in the fridge to help set the whip cream and settle the cake down before cutting.