Caramelized onions are magical things. Don’t get me wrong, I love onions in all different contexts – raw, sautéed, grilled, you name it. But caramelized onions are in a category all their own. They are a wonderful topping for focaccia bread, delicious paired with brie in bite-sized appetizers, and brilliant in French onion soup. Well, this tart is another phenomenal use of caramelized onions because they are paired with flaky, buttery puff pastry. Can you say yumtown?
I have to admit that I can no longer bring myself to use the store-bought puff pastry because homemade tastes so much better, they can’t even be compared. The homemade version really doesn’t take all that much effort, just a few steps of rolling out, folding, and chilling (step-by-step pictures here). But, if you do go the route of store-bought puff pastry, this is a quick and impressive appetizer. If only I didn’t know just how much butter was in the puff pastry, I would make short work of this tart as a meal all by itself.