INGREDIENTS
4 oz
dark chocolate (chopped)
2 tbsp
softened unsalted butter (plus more for greasing ramekins)
2 tbsp
sugar (plus more for coating the ramekins)
1
egg plus 1 egg yolk
2 tbsp
all purpose flour
1/2 tsp
instant coffee (optional, but intensifies chocolate flavor, see notes)
1/8 tsp
kosher salt