Key Lime Bars with an Animal Cracker Crust

The warm weather makes me crave tart and sweet citrus desserts.

Key lime is one of those citrusy desserts and I needed some ASAP.

These are the BEST key lime bars I have ever eaten.

Cook's Illustrated tested both regular limes and key limes and the taste testers couldn't tell the difference, so for the sake of juicing 4 regular limes vs. 20 key limes, they opted to use regular limes in this recipe.

I, myself, opted for bottled key lime juice.  I really love that stuff.

I like to pour myself a glass of it and drink it on hot days.

NOT.  Just seeing if you were paying attention :)

The crust is phenomenal.  The brown sugar gives it a toasted nutty caramely flavor.  I thought it would be too much, since it is almost as thick as the filling, but it was perfect.  This crust would also be fabulous with a banana cream pie.

Key Lime Bars w/ an Animal Cracker Crust

adapted from: Cook's Illustrated
(Printable Recipe) or (Printable with Picture)

Crust:

5 oz. animal crackers (about 2 1/2 cups)

3 Tbl. packed brown sugar

pinch of salt

4 Tbl. unsalted butter, melted

Filling:

2 oz. cream cheese, softened (I used light)

pinch of salt

1 Tbl. lime zest, grated (I only added zest of 1 lime)

1 (14 oz.) can sweetened condensed milk

1/2 c. fresh lime juice 

   about 4 regular limes or 20 key limes

1 large egg yolk

Preheat oven to 325 degrees.  Line an 8x8-inch baking pan with aluminum foil, press into corners and up the sides of the baking dish, leaving an overhang to easily remove bars when done.  Spray with cooking spray.  For the crust:  Add animal crackers, brown sugar and a pinch of salt to a food processor.  Process until you have fine crumbs.  Drizzle in melted butter and pulse until crumbs are evenly moistened with butter.  Press crumbs evenly and firmly into bottom of prepared pan.  Bake until golden brown and fragrant, about 18 minutes.

Meanwhile, for the filling:  Stir together softened cream cheese, a pinch of salt and grated lime zest.  Whisk in the sweetened condensed milk.  Add the lime juice and whisk until smooth and creamy.  Last, whisk in the egg yolk.  Pour mixture over warm baked crust and spread out evenly.  Return to oven and bake until filling is set and barely beginning to pull away from the sides of the pan, about 17-20 minutes.

Let cool on wire rack to room temperature; about 1 1/2 hours.  Cover with foil and refrigerate until chilled, at least 2 hours.  Remove from pan using the foil overhang; cut into 16 squares and serve.  

Jenn's Notes:  I used bottled Nellie & Joe's Key Lime Juice (found at most grocery stores) instead of fresh lime juice.  These bars are the best I have had and I wouldn't change a thing from what I did.