In large bowl, beat shortening and butter with electric mixer until light and fluffy. Beat in vanilla.
Gradually add sugar, one cup at a time, beating well on medium speed. Scrape sides and bottom of bowl often. When all sugar has been mixed in, icing will appear dry.
Gradually add milk; beat at medium speed until light and fluffy.
Preheat the oven to 350 degrees. Add 24 cupcake liners to tray.
In a large bowl, cream together the butter, sugar and dry strawberry gelatin until light and fluffy. Beat in eggs one at a time, mixing well after each. Combine the flour and baking powder; stir into the batter alternately with the milk. Blend in vanilla and strawberry puree. Fill each liner 2/3 full.