Ready in under half an hour, these single-serve cakes rely on one-bowl prep and everyday pantry staples, so they’re ideal when dessert plans are truly last-minute. The unbaked batter can rest in the fridge for up to a day, letting you slide ramekins straight into the oven whenever a chocolate craving—or an unexpected guest—appears.
High-quality dark chocolate (70 % cacao) 4 oz / 113 g
Preheat the oven to 425°F 220°C
Brush the ramekins with soft butter, then dust with cocoa instead of flour; the cakes will unmold cleanly and keep their deep-dark finish. For an easy twist, press a chilled teaspoon of raspberry jam, peanut butter, or salted caramel into the center of each filled ramekin just before baking—the add-in sinks as the batter rises, giving you a flavored molten core.