Jiffy Cinnamon Rolls
["4 to 5 1/2 c. all-purpose flour, divided", "1 (9 oz.) box one-layer white cake mix", "2 pkg. quick rise yeast", "1 tsp. salt", "1/2 tsp. vanilla", "2 c. warm water", "1 egg, slightly beaten", "2 Tbsp. butter", "1/2 c. sugar", "1 Tbsp. cinnamon"]
["In a large mixing bowl, combine 3 cups flour, cake mix, yeast, salt and warm water.", "Mix until smooth, add enough remaining flour to form a soft dough.", "Turn out onto a lightly floured surface. Knead until smooth, about 6 to 8 minutes.", "Roll dough into a 9 x 18-inch rectangle.", "Spread with butter and sprinkle with sugar and cinnamon.", "Roll dough jelly-roll style, starting with the long end.", "Slice the dough into 1-inch circles, place on greased cookie sheet.", "Cover and let rise in a warm place until doubled, about 15 minutes.", "Bake at 350\u00b0 for 15 to 18 minutes.", "Frost, if desired. Makes about 18 rolls."]
["all-purpose flour", "cake mix", "yeast", "salt", "vanilla", "water", "egg", "butter", "sugar", "cinnamon"]