Preheat the oven and prepare the ramekins:
Preheat your oven to 350°F (175°C). Spray 8 (4 oz) ramekins with cooking spray and place them on a large baking tray. This ensures that your cakes will be easy to remove after baking.
Melt the chocolate:
In a medium microwave-safe bowl, melt the Ghirardelli chocolate in 45-second intervals, stirring in between. Once melted, let the chocolate cool slightly.
Mix the wet ingredients:
Add the pumpkin puree, vanilla extract, maple syrup, and 1 whole egg to the melted chocolate. Stir well until the mixture is smooth and fully combined.
Beat the egg whites:
In a separate bowl, use a hand mixer to beat the egg whites until soft peaks form. This will help give the cake its airy texture.
Fold the egg whites into the chocolate mixture:
Gently fold the whipped egg whites into the chocolate mixture, being careful not to deflate them. Add the kosher salt and continue to fold until fully combined.
Spoon into ramekins and bake:
Spoon 1/4 cup of the batter into each prepared ramekin. Bake for about 15 minutes, or until the cakes rise and are slightly set in the center.
Serve and enjoy:
Serve the cakes immediately while they’re still warm, and enjoy the rich, fudgy goodness of this flourless chocolate cake.