Onion Buns
["1 pkg. hot roll mix", "4 tsp. instant minced onion", "2 Tbsp. butter or margarine", "1 c. chopped onion", "1 Tbsp. milk", "1 egg yolk, beaten", "1/4 tsp. salt"]
["About 1 1/2 hours before serving or early in the day: Prepare dough for hot roll mix as label directs, but add instant minced onion with flour; let rise.", "Meanwhile, in a small saucepan, heat hot butter or margarine; cook chopped onion until tender.", "Stir in milk, egg yolk and salt.", "Cover and refrigerate."]
["hot roll", "onion", "butter", "onion", "milk", "egg yolk", "salt"]