Pineapple Meringue Tart

Step 1
Preheat the oven to 325 degrees F (165 degrees C).

Step 2
Combine flour, butter, and sugar in a stand mixer fitted with the paddle attachment. Beat together until a soft dough forms. Press dough over the bottom and up the sides of a 9×12-inch baking pan.

Step 3
Bake in the preheated oven until edges are light golden, 20 to 25 minutes.

Step 4
While crust is baking, bring sugar and crushed pineapple to a boil in a small saucepan. Mix cornstarch with water and stir into the pineapple filling. Simmer until thickened, about 5 minutes. Remove from heat and cool slightly.

Step 5
While filling is cooling, beat egg whites in a glass, metal, or ceramic bowl until stiff peaks form. Add slightly cooled pineapple mixture; whip on low speed until just combined. Give filling 1 more stir to ensure it is evenly mixed.

Step 6
Pour filling into the baked crust. Return to the oven and bake until the topping is slightly golden brown, about 10 minutes. Cool before cutting into squares.