1-First Step: Make the Crust Start by blending 1¼ cups unbleached all-purpose flour, 3 tablespoons granulated sugar, and ¾ cup slivered almonds in a food processor until they’re finely ground. This creates a base with great texture. Then, cut in 10 tablespoons of chilled unsalted butter until it forms a coarse meal, add 1 large beaten egg, and blend until dough comes together. Chill the dough for 1 hour to make it easier to handle.

2-Second Step: Shape and Bake the Crust Line a 10-inch tart pan with parchment paper and slice the chilled dough into pieces. Press these pieces into the pan to form an even crust, which is simpler than rolling. Refrigerate for another hour to firm up. Bake at 375°F for about 17 minutes until golden brown, then cool and remove the fluted ring. This step helps prevent a soggy crust, as mentioned in our FAQs.

3-Third Step: Prepare the Lemon Cream Filling Moisten ¾ cup granulated sugar with the finely grated zest of 3 large lemons to release their oils. Whisk in 3 large eggs and ⅓ cup freshly squeezed lemon juice in a bowl over simmering water. Cook while whisking constantly until it reaches 180°F and thickens, which takes about 10-15 minutes. Strain the mixture, then blend in 9 tablespoons of softened unsalted butter until it’s light and airy. Chill for at least 4 hours or overnight for the best consistency.

4-Fourth Step: Make the Swiss Meringue Topping Combine 3 large egg whites at room temperature, a pinch of cream of tartar, and ½ cup granulated sugar in a heatproof bowl. Heat over simmering water, stirring until the sugar dissolves and the temperature hits 175°F. Remove from heat and whip to stiff, glossy peaks. This creates a stable meringue that holds its shape well.

5-Fifth Step: Assemble and Finish Once the crust and filling are ready, spread the chilled lemon cream into the cooled crust. Pipe or dollop the meringue on top and brown it lightly with a kitchen torch or under the oven broiler. Chill the assembled tart for at least 1 hour before serving to let flavors meld. This yields 8 servings, perfect for sharing with family or friends. For lighter options, consider adapting with low-calorie substitutes as discussed in the ingredients section.