For the Filling
- 1 can sweetened condensed milk
- 5 egg yolks
- 2/3 cup fresh lime juice (Key lime if possible)
- 3 tbsp lime zest (plus more for garnish)
- 1 tbsp lemon juice
- 1/4 tsp kosher salt
For the Topping
- 1 cup heavy whipping cream
- 1/4 cup crème fraîche (or substitute sour cream)
Preheat and PrepSet your oven to 350°F (175°C). Crush the ginger snaps using a food processor or by hand in a zip-top bag with a rolling pin until fine. In a bowl, combine cookie crumbs with sugar, melted butter, and salt. Stir until evenly moistened. Bake the CrustPress the crumb mixture firmly into the bottom and sides of a 9-inch pie dish. Bake for 8–10 minutes or until lightly golden and set. Cool slightly while you prep the filling. Mix the FillingIn a bowl, whisk together condensed milk, egg yolks, lime juice, lime zest, lemon juice, and salt until smooth (don’t overmix—air bubbles are the enemy). Pour into the baked crust. Bake and ChillBake for 18–20 minutes, just until the center is set with a gentle jiggle. Cool at room temperature, then refrigerate for at least 2 hours (or overnight for best texture). Whip the ToppingUsing a hand mixer or stand mixer, whip cream until soft peaks form. Add crème fraîche and whip again briefly to incorporate—aim for a soft, cloud-like texture. Decorate and ServePipe or dollop the whipped topping onto the chilled pie. Sprinkle with extra lime zest, and serve cold.
Tips for Success
- Chill the pie for a few hours before serving—flavors meld and the texture sets beautifully.
- Make ahead! Store the pie (without topping) in the fridge for up to 3 days or freeze for up to 2 months.
- Don’t have key limes? Regular fresh lime juice works just fine.
- No ginger snaps? Sub in digestive biscuits or graham crackers if needed.