Bake this gooey Keto Lava Cake for Two in the air fryer and it's ready in 10 minutes flat! It's the perfect low carb sweet treat for you and a loved one. Or just you and you!
Preheat the air fryer to 350ºF. Lightly grease two jumbo-sized silicone muffin cups. (You can also use 4-ounce ramekins but the cakes may not release as easily.)
In a medium microwave-safe bowl, melt the butter. Stir in the cocoa powder, sweetener, and salt until smooth.
Add the egg and egg yolk and whisk until well combined. Don't worry if the mixture becomes a little gloppy. Whisk in the vanilla extract and the warm liquid until you have a smooth batter.
Divide the batter between the two prepared muffin cups and place on the lowest rack of the air fryer. Cook about 6 to 7 minutes, until the tops are set but it still feels a little soft in the center.
Remove and let cool a few minutes before flipping out onto a plate. If you used silicone muffin cups, they should come out easily. If you used ramekins, you will need to run a knife around the outer edge to loosen.
Notes
Do note that air fryers differ significantly in strength and capacity and I can't account for all models. So keep your eye on these. If in doubt, cook for less time... they may not come out of the molds perfectly but they will be gooier and more delicious. Oven Baking: Prepare the batter and the molds as directed. If using ceramic ramekins, I recommend dusting lightly in cocoa powder to help remove the cakes more easily. Preheat the oven to 375ºF. Bake the cakes for 10 to 15 minutes. They should be set around the edges but still jiggle a little in the center when shaken.