3 tbsp. butter
3 c. diced rhubarb
1 1/2 c. sugar
3 tbsp. cornstarch
3 egg yolks
1/3 c. milk
1/8 tsp. salt

Melt butter; add rhubarb and sugar. Cook slowly until rhubarb is tender. Combine rest of ingredients. Add to rhubarb and cook until thick. Cool. Pour into baked pie shell. Top with meringue.