Prep Time 25 minutes mins
Cook Time 20 minutes mins
Resting Time 45 minutes mins
Total Time 1 hour hr 30 minutes mins
For best results, ensure all refrigerated ingredients are at room temperature so the batter and buttercream emulsify smoothly and bake evenly. Keep a close eye on the caramel, as it can burn very quickly once it starts browning, and swirl rather than stir to avoid crystallization. Do not overfill the cupcake liners, or the batter may overflow and bake unevenly. If the caramel seems too runny for filling, let it cool a little longer until it thickens to a spoonable consistency; if the buttercream is too soft, briefly chill it and re-whip. Store cupcakes in an airtight container at room temperature for up to a day or refrigerate for longer, bringing them back to room temperature before serving for the best texture and flavor.