Kolaches
["1 pkg. dry yeast", "1 c. warm water (105~ to 115~)", "2 c. milk", "2 eggs, beaten", "1/4 c. plus 1 Tbsp. sugar, divided", "7 c. flour, divided", "1/2 c. butter, melted", "1 tsp. salt"]
["Filling variations recipes follow."]
["yeast", "warm water", "milk", "eggs", "sugar", "flour", "butter", "salt"]