In a bowl, combine the eggs, sugar, salt, and flour, beat by hand till sugar is dissolved.
In a medium saucepan over medium heat, melt the butter and chocolate chips.
Remove saucepan from heat and stir in the egg/sugar mixture until smooth.
Pre-heat 12-inch Dutch oven to 450℉ (approximately 33 coals total, 22 on the lid of the oven / 11 below the bottom of the Dutch oven).
Add foil cupcake liners to fit the bottom of the oven (will make about 12 cakes).
Pour equal amounts of batter in each liner.
Let cakes bake approximately 8-10 minutes, you want the batter to puff up BUT not enough to set the center.
Let cool and sprinkle with powdered sugar.