Rhubarb Meringue Pie

Step 1
Preheat the oven to 350 degrees F (175 degrees C).

Step 2
Fit pie crust into a 9-inch pie dish; spread rhubarb evenly over crust.

Step 3
Whisk 1 cup sugar, half-and-half, egg yolks, flour, and salt together in a bowl until smooth; pour over rhubarb.

Step 4
Bake in the preheated oven until crust is browned and filling is set, 50 to 60 minutes.

Step 5
Just before pie is finished baking, beat egg whites in a glass, metal, or ceramic bowl until stiff. Gradually add remaining 1/4 cup sugar and cream of tartar, continuing to beat until meringue is glossy.

Step 6
Remove pie from the oven; spoon meringue over top, covering the entire filling. Use a spoon or spatula to make decorative swirls in meringue.

Step 7
Return to the oven and bake until meringue is lightly browned, about 10 minutes. Cool for 10 to 15 minutes before serving.