A hint of cinnamon and cayenne punches up irresistibly decadent chocolate cakes. They’re great make-aheads, but use the shortest baking time suggested in the recipe so when reheated, the lava centre is still runny.
Bake cakes the shortest suggested time, then let stand 5 minutes. Run a knife around edges. Turn out and place bottom side up on a foil-lined baking sheet or plates. Cover and refrigerate overnight. Before serving, bring to room temperature Reheat at 400F (200C) until warm, 3 to 4 minutes. Or microwave cakes individually on medium, 30 to 60 seconds.