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Toaster-Oven Key Lime Pie

By America's Test Kitchen

Published on January 19, 2022

Time

1 hour, plus 4 hours cooling and refrigerating time

Yield

Serves 8

Toaster-Oven Key Lime Pie

Ingredients

Filling

1 (14-ounce) can sweetened condensed milk 4 large egg yolks 4 teaspoons grated lime zest plus ½ cup juice (5 limes)

Crust

11 whole graham crackers, broken into 1-inch pieces3 tablespoons granulated sugar 5 tablespoons unsalted butter, melted and cooled

Topping

¾ cup heavy cream ¼ cup (1 ounces/28 grams) confectioners' sugar

Before You Begin

After letting it cool, we topped our pie with a simple, fresh whipped cream which was the perfect complement to our bright, tangy lime filling. 

Instructions

    for the filling

  1.  Whisk condensed milk, egg yolks, and lime zest and juice together in bowl until smooth. Cover mixture and let sit at room temperature until thickened, about 30 minutes. 
  2. for the crust

  3.  Adjust toaster oven rack to middle position and heat oven to 325 degrees. Process graham cracker pieces and sugar in food processor to fine, even crumbs, about 30 seconds. Sprinkle melted butter over crumbs and pulse to incorporate, about 5 pulses. 
  4.  Sprinkle mixture into 9-inch pie plate. Using bottom of dry measuring cup, press crumbs into even layer on bottom and up sides of pie plate. Bake until crust is fragrant and beginning to brown, 10 to 15 minutes. Transfer to wire rack and let cool slightly, about 10 minutes.
  5.  Pour thickened filling into warm crust and smooth top. Bake pie until center is firm but jiggles slightly when shaken, 12 to 17 minutes. Let pie cool slightly on wire rack, about 1 hour. Cover pie loosely with plastic wrap and refrigerate until filling is chilled and set, at least 3 hours or up to 24 hours.
  6. for the topping

  7. Using stand mixer fitted with whisk attachment, whip cream and sugar on medium-low speed until foamy, about 1 minute. Increase speed to high and whip until soft peaks form, 1 to 3 minutes. (Topping can be refrigerated in fine-mesh strainer set over small bowl and covered with plastic wrap for up to 8 hours.) Spread whipped cream attractively over pie. Serve.
Toaster-Oven Key Lime Pie
Photography by Steve Klise. Styling by Sally Staub.

Toaster-Oven Key Lime Pie

Headshot of America's Test Kitchen
By America's Test Kitchen
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Time

1 hour, plus 4 hours cooling and refrigerating time

Yield

Serves 8

Ingredients

Filling

1 (14-ounce) can sweetened condensed milk
4 large egg yolks
4 teaspoons grated lime zest plus ½ cup juice (5 limes)

Crust

11 whole graham crackers, broken into 1-inch pieces
3 tablespoons granulated sugar
5 tablespoons unsalted butter, melted and cooled

Topping

¾ cup heavy cream
¼ cup (1 ounces/28 grams) confectioners' sugar

Ingredients

Filling

1 (14-ounce) can sweetened condensed milk
4 large egg yolks
4 teaspoons grated lime zest plus ½ cup juice (5 limes)

Crust

11 whole graham crackers, broken into 1-inch pieces
3 tablespoons granulated sugar
5 tablespoons unsalted butter, melted and cooled

Topping

¾ cup heavy cream
¼ cup (1 ounces/28 grams) confectioners' sugar

Ingredients

Filling

1 (14-ounce) can sweetened condensed milk
4 large egg yolks
4 teaspoons grated lime zest plus ½ cup juice (5 limes)

Crust

11 whole graham crackers, broken into 1-inch pieces
3 tablespoons granulated sugar
5 tablespoons unsalted butter, melted and cooled

Topping

¾ cup heavy cream
¼ cup (1 ounces/28 grams) confectioners' sugar

Why This Recipe Works

But we found that the pie filling set much more nicely after a brief bake. The toaster oven was ideal to whip up this summer dessert because there was no need to turn on our main oven, especially in the summer. We made a quick homemade crust by pulsing graham crackers, sugar, and melted butter together before pressing it into the pie plate. A good key lime pie should remind us of the warm, fragrant breezes of the Florida Keys, but many versions disappoint with artificial flavors. We found that just one swap—from the typical bottled, reconstituted lime juice to fresh lime juice and zest—gave us a pie that was pungent and refreshing, cool yet creamy, and very aromatic.

Before You Begin

After letting it cool, we topped our pie with a simple, fresh whipped cream which was the perfect complement to our bright, tangy lime filling. 

Instructions

    for the filling

  1.  Whisk condensed milk, egg yolks, and lime zest and juice together in bowl until smooth. Cover mixture and let sit at room temperature until thickened, about 30 minutes. 
  2. for the crust

  3.  Adjust toaster oven rack to middle position and heat oven to 325 degrees. Process graham cracker pieces and sugar in food processor to fine, even crumbs, about 30 seconds. Sprinkle melted butter over crumbs and pulse to incorporate, about 5 pulses. 
  4.  Sprinkle mixture into 9-inch pie plate. Using bottom of dry measuring cup, press crumbs into even layer on bottom and up sides of pie plate. Bake until crust is fragrant and beginning to brown, 10 to 15 minutes. Transfer to wire rack and let cool slightly, about 10 minutes.
  5.  Pour thickened filling into warm crust and smooth top. Bake pie until center is firm but jiggles slightly when shaken, 12 to 17 minutes. Let pie cool slightly on wire rack, about 1 hour. Cover pie loosely with plastic wrap and refrigerate until filling is chilled and set, at least 3 hours or up to 24 hours.
  6. for the topping

  7. Using stand mixer fitted with whisk attachment, whip cream and sugar on medium-low speed until foamy, about 1 minute. Increase speed to high and whip until soft peaks form, 1 to 3 minutes. (Topping can be refrigerated in fine-mesh strainer set over small bowl and covered with plastic wrap for up to 8 hours.) Spread whipped cream attractively over pie. Serve.

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