1. Gather all ingredients together like a warm hug.  Preheat your oven to 300°F (150°C) and grease a 10-inch round cake pan. Set it aside, dreaming of chocolatey goodness. 

2. In a small saucepan over medium heat, combine the sugar , water , and salt . Stir until completely dissolved and let it rest for a moment—like letting anticipation build. 

3. Melt the bittersweet chocolate  in a microwave-safe glass bowl. Go slow and steady, warming it in 15-second intervals and stirring in between until silky smooth—1 to 3 minutes should do the trick!  Pour this luscious chocolate into the bowl of an electric mixer.

4. Cut the butter  into pieces and beat it into the melted chocolate, letting them mingle until combined. It’s like a sweet friendship coming together! 

5. Now, beat in the hot sugar water. Slowly add in the eggs , one at a time, blending them in gently. Your batter should be a smooth, rich compass that points to dessert heaven! 

6. Pour this delectable batter into the prepared cake pan, spreading the love evenly. 

7. Prepare a larger pan than your cake pan. Place your cake pan inside, and fill the larger pan with boiling water halfway up the sides of the cake pan. Yes, we’re creating a cozy water bath! 

8. Bake your gorgeous cake in the preheated oven for 45 minutes. Remember, the center will still look a bit wet; that’s just a promise of moisture!  Once the time’s up, let it take a nap in the refrigerator until thoroughly chilled—around 8 hours or overnight is best. Zzz… 

9. To un-mold your masterpiece, dip the bottom of the cake pan in hot water for about 10 seconds and then invert it onto your favorite serving plate. Voilà! 

10. Slice, serve, and savor the rich flavor of nostalgic joy. Enjoy every morsel like it’s an embrace from grandma!