Jelly Roll
["6 egg yolks", "1 c. sugar", "1/2 c. boiling water", "1/2 tsp. salt", "1 tsp. vanilla", "2 tsp. baking powder", "1 1/2 c. cake flour"]
["Beat yolks until light on medium speed.", "Add sugar, then boiling water.", "Lower speed; add dry ingredients and beat 2 minutes.", "Pour in jelly roll pan lined with wax paper. Bake at 350\u00b0 for 25 minutes.", "Roll in damp cloth while hot.", "Unroll, add jelly and roll up again."]
["egg yolks", "sugar", "boiling water", "salt", "vanilla", "baking powder", "cake flour"]