This is a rich, decadent chocolate treat with a molten center. Prepare the recipe right up to before the baking step and then refrigerate the unbaked cakes that you aren’t planning on eating right away. Add another 2 minutes to the baking time and you can bake off the cakes in individual servings as needed.
Preheat oven to 375ºF. Grease 6, 6 ounce ramekins with coconut oil (or butter) and set aside.
Melt coconut oil and chocolate together in a glass bowl in a microwave at 50% power for 2 minutes, checking and stirring after one minute. Mixture should be smooth so keep heating and stirring in 30 second increments after 2 minutes, if it is not smooth. Let cool until you can touch the glass with your hands. (Alternatively, heat over a double boiler until melted and completely smooth.) Add the sweetener, eggs, vanilla, and salt and combine with a mixer or whisk by hand. Set aside.
Pour 1/3 cup chocolate mixture into the ramekins.
Bake for 10-12 minutes (the center should still be liquid but the edges will solidify). Allow them to cool for a couple of minutes before removing them from the ramekins.