Dessertsbonappetit4.1
Key Lime Pie Thumbprint Cookies
The classic dessert reimagined as a soft and chewy cookie with a buttery, brown-sugar-sweetened graham cracker dough and a silky lime custard filling.
👥 14 Servings👤 Kelsey Jane Youngman📖 bonappetit
🥘 Ingredients
Check off ingredients as you prepare them:
🍳 Cookware
- ●bowl
- ●food processor
- ●oven
- ●baking sheet
- ●measuring cup
- ●whisk
📝 Preparation Steps
1
Cookies
2
Place racks in upper and lower thirds of oven and preheat to 350°. Pulse 9 graham cracker sheets (about 5 oz.; 1 sleeve) in a food processor until sandy crumbs form. Add ¾ cup plus 1 Tbsp. (101 g) all-purpose flour and 1¼ tsp. Diamond Crystal or ¾ tsp. Morton kosher salt; pulse to combine. Transfer to a small bowl.
¼ tsp. Diamond Crystal or ¾ tsp. Morton kosher salt1
3
Pulse ½ cup (packed; 100 g) light brown sugar and ½ cup (1 stick) unsalted butter, room temperature, in processor until creamy. Add 1 large egg and ½ tsp. vanilla extract and pulse just to combine. Add graham cracker mixture and process until dough comes together and forms a ball, about ⏱️ 45 seconds.
large egg1large egg yolk1
4
Place ¼ cup (50 g) granulated sugar in a clean small bowl. Using a #40 cookie scoop (about 2 Tbsp.), portion out dough; roll into smooth balls (dough will be sticky). Working one at a time, toss balls in granulated sugar to coat generously. Divide between 2 parchment-lined baking sheets, spacing at least 2" apart (about 7 per sheet). Working one at a time, dip the bottom of a shot glass or ⅛-cup measuring cup into remaining granulated sugar, then press down in center of balls to create a divot that can hold 2 tsp. filling, about ¼" deep (for the first cookie, press glass into it a little before dipping into sugar; it will easily adhere to glass from thereafter). Chill cookies in freezer ⏱️ 15 minutes.
5
Filling and Assembly
6
While cookies are chilling, whisk 1 large egg yolk and ⅓ cup sweetened condensed milk in a small bowl to combine. Add 2 Tbsp. plus 1½ tsp. fresh lime juice and 4 tsp. finely grated lime zest; whisk until slightly thickened.
large egg1large egg yolk1. plus 1½ tsp. fresh lime juice2 Tbsp. finely grated lime zest, plus more for serving4 tsp
7
Remove cookies from freezer and spoon about 2 tsp. filling into each divot (don’t overfill). Bake cookies, rotating baking sheets top to bottom and front to back halfway through, until filling is set and cookies are firm and golden brown around the edges, 12–⏱️ 14 minutes. Let cookies cool on baking sheets ⏱️ 5 minutes. Transfer to a wire rack and let cool completely.
8
Just before serving, finely grate a little lime zest over each cookie. Do Ahead: Cookies (without lime zest) can be baked 1 day ahead. Store airtight in a single layer at room temperature.
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