Creating Sacher Torte is an enjoyable process that can yield impressive results. Follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan.
2. Melt Chocolate: In a heatproof bowl, melt the 7 ounces of dark chocolate over simmering water, stirring until smooth. Set aside to cool slightly.
3. Cream Butter and Sugar: In a large mixing bowl, cream the softened butter and granulated sugar together until light and fluffy.
4. Add Egg Yolks: Beat in the egg yolks, one at a time, mixing well after each addition. Add the melted chocolate and vanilla extract, mixing until combined.
5. Combine Dry Ingredients: In another bowl, sift together the flour and baking powder, then gradually fold this mixture into the chocolate mixture.
6. Beat Egg Whites: In a separate clean bowl, whisk the egg whites until stiff peaks form. Gently fold the beaten egg whites into the batter until no white streaks remain.
7. Pour Batter: Pour the batter into the prepared cake pan and smooth the top.
8. Bake: Bake in the preheated oven for 45-50 minutes or until a toothpick inserted in the center comes out clean.
9. Cool: Remove from the oven and allow the cake to cool in the pan for 15 minutes. Then, transfer to a wire rack to cool completely.
10. Prepare Apricot Layer: Once the cake is cool, spread a layer of apricot jam over the top of the cake.
11. Make Glaze: For the chocolate glaze, melt the remaining 7 ounces of dark chocolate with the heavy cream over low heat, stirring until smooth.
12. Glaze the Cake: Pour the glaze over the cake, allowing it to drip down the sides for a beautiful finish.
13. Chill: Allow the glaze to set by refrigerating the cake for at least 30 minutes before serving.

These steps will guide you through creating a stunning Sacher Torte that will impress everyone.