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Key Lime Slice

Key Lime Slice Key Lime Slice Key Lime Slice Key Lime Slice Key Lime Slice Key Lime Slice

Came up with this delicious key lime slice recipe while in Key Largo, Florida. Similar to the Aussie Lemon slice but with a twist of the keys.













Trans-fat Free, Low Sodium


4 ounces butter, unsalted
½ teaspoon vanilla extract
cup sugar
teaspoon salt
1 ⅓ cups whole-wheat pastry flour
or white wheat flour, or all-purpose
1 tablespoon cornstarch
Key lime topping
4 large eggs
2 teaspoons lime zest
key lime
1 ⅓ cups sugar
cup key lime juice
cup all-purpose flour
3 tablespoons powdered sugar
to sprinkle on once chilled


Preheat oven to 350℉ (180℃).

In a medium bowl, add the melted butter, sugar, vanilla and salt; mix with a wooden spoon. Sift over the top the flour and cornstarch. Mix together with a wooden spoon until a dough forms.

Line an 11 x 7 inch baking pan with parchment paper allow one inch to overlap on all sides. Press the dough evenly into the pan (on top of the parchment paper). Use a spoon to press down and level it out as evenly as possible.

Bake the base for 15 to 20 minutes until set and just beginning to turn golden.

Meanwhile whisk together the eggs, lime (or lemon) zest, sugar, key lime juice, flour and salt in a bowl.

Once the base has finished baking, whisk the key lime mixture again and pour evenly over the top of the base.

Return to the oven and bake for 15 to 20 minutes until the key lime topping has just set.

Allow to cool completely and dust icing sugar over the top.

Remove from the pan and slice into 24 squares.


* not incl. in nutrient facts

Add review





This looks fabulous!

over 10 years ago

Thanks, Liz :)


Bonnie Banters

These are just fabulous and love the whole wheat flour used in the crust! Thanks!

over 10 years ago

Thanks, Bonnie. When we bake goods, if we can, we always use whole wheat flour to replace some or entire white flour. Whole wheat flour is good for our body :)


Nutrition Facts

Serving Size 89g (3.1 oz)
Amount per Serving
Calories 27930% of calories from fat
 % Daily Value *
Total Fat 9g 14%
Saturated Fat 5g 27%
Trans Fat 0g
Cholesterol 91mg 30%
Sodium 50mg 2%
Total Carbohydrate 15g 15%
Dietary Fiber 0g 2%
Sugars g
Protein 8g
Vitamin A 6% Vitamin C 7%
Calcium 2% Iron 9%
* based on a 2,000 calorie diet How is this calculated?


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