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Zesty Key Lime Tart Recipe Easy Homemade Graham Cracker Crust Dessert

zesty key lime tart - featured image

A bright and tangy key lime tart with a buttery homemade graham cracker crust, perfect for any occasion and easy to make with simple ingredients.

Ingredients

Scale
  • 1 1/2 cups (150g) graham cracker crumbs (about 10 full sheets, crushed finely)
  • 6 tablespoons (85g) unsalted butter, melted
  • 1/4 cup (50g) granulated sugar
  • 4 large egg yolks (room temperature)
  • 1 can (14 oz / 396g) sweetened condensed milk
  • 1/2 cup (120ml) freshly squeezed key lime juice (or regular lime juice)
  • Zest of 2 key limes
  • Whipped cream (optional, for garnish)
  • Thin lime slices or extra zest (optional, for garnish)
  • Toasted coconut flakes (optional, for garnish)

Instructions

  1. Preheat oven to 350°F (175°C). In a food processor, pulse graham crackers until fine crumbs. Transfer to a bowl and stir in sugar.
  2. Pour in melted butter and mix until crumbs are evenly coated and hold together when pressed.
  3. Press crumb mixture firmly into bottom and up sides of a 9-inch tart pan. Use a measuring cup bottom to pack tightly and evenly.
  4. Bake crust for 10 minutes until lightly golden. Remove and let cool slightly.
  5. In a bowl, whisk egg yolks until smooth and slightly thickened.
  6. Add sweetened condensed milk, fresh key lime juice, and lime zest. Whisk vigorously until fully combined and glossy.
  7. Pour lime filling into warm crust, spreading evenly.
  8. Bake tart at 350°F (175°C) for about 15 minutes until tiny pinhole bubbles appear and center jiggles slightly.
  9. Remove from oven and cool to room temperature. Chill in fridge for at least 2 hours or overnight to set.
  10. Before serving, garnish with whipped cream, lime slices, or toasted coconut flakes if desired.

Notes

Do not overbake the tart to avoid cracks; the filling should jiggle slightly when done. Press crust firmly to prevent crumbling. Tent crust edges with foil if browning too quickly. Taste filling before baking and adjust sweetness if needed. For gluten-free, substitute graham crackers with gluten-free crumbs or almond flour. For dairy-free, use coconut oil and coconut condensed milk.

Nutrition

Keywords: key lime tart, graham cracker crust, easy dessert, citrus dessert, homemade tart, summer dessert, quick dessert