Ingredients

Pastry for single-crust pie (9 inches)3/4 cup sugar1/4 cup all-purpose flour1-3/4 cups 2% milk6 tablespoons butter, cubed3 large egg yolks1 cup chopped pecans, toasted1 teaspoon vanilla extractMERINGUE:3 large egg whites, room temperature1/2 teaspoon vanilla extract1/4 teaspoon cream of tartar6 tablespoons sugar

Preparation

On a lightly floured surface, roll pastry to a 1/8-in.-thick circle; transfer to a 9-in. pie plate. Trim to 1/2 in. beyond rim of plate; flute edge. Refrigerate 30 minutes. Preheat oven to 425° .

Line unpricked pastry with a double thickness of foil. Fill with pie weights, dried beans or uncooked rice. Bake on a lower oven rack until edges are light golden brown, 12-15 minutes. Remove foil and weights; bake until bottom is golden brown, 3-6 minutes longer. Cool on a wire rack. Reduce oven setting to 350°.

In a large heavy saucepan, mix sugar and flour. Whisk in milk and butter. Cook and stir over medium heat until thickened and bubbly. Reduce heat to low; cook and stir 2 minutes longer. Remove from heat.

In a small bowl, whisk a small amount of hot mixture into egg yolks; return all to pan, whisking constantly. Bring to a gentle boil; cook and stir 2 minutes. Remove from heat. Stir in pecans and vanilla.

For meringue, in a large bowl, beat egg whites, vanilla and cream of tartar on medium speed until foamy. Gradually add sugar, 1 tablespoon at a time, beating on high after each addition until sugar is dissolved. Continue beating until soft glossy peaks form.

Transfer hot filling to crust. Spread meringue evenly over filling, sealing to edge of crust. Bake until meringue is golden brown, 12-15 minutes. Cool 1 hour on a wire rack. Refrigerate at least 6 hours before serving.