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I first came across the Bon Appétit recipe in Elizabeth's bar cookie post. She couldn't be more right when she calls them "one-pan wonders." I took a batch to my first block party, and I'm pretty sure they helped me win over the neighbors. My only regret is that I didn't save a few for myself at home.

These bars are incredibly simple to make with three components that are really more like two. Reserve some of the cinnamon-spiced oatmeal crust mixture, add nuts, and the crumble topping is done. The crust, which is par-baked before adding the final two layers, reminded me of this strawberry mascarpone tart, and that's never a bad thing.

The filling is a mixture of fresh blueberries, blueberry preserves and a little flour and lemon peel. I'm hoping to make my own blueberry preserves this summer, but I haven't yet, so I chose a jar at the market that boasted whole wild berries and the fewest ingredients. By adding the grated lemon peel and not too much sweetness, the filling is perfectly tangy.

• Bon Appétit: Blueberry Crumb Bars

Related: Seasonal Recipe Spotlight: Blueberries

(Images: Joanna Miller)