Butter Cream Frosting...

1/2 C. Shortening

1/2 C. Butter

1 tsp. Vanilla Extract

4 C. Sifted Powdered Sugar

1 Tbsp. Milk

In large bowl cream shortening and butter with electric mixer. Add vanilla. Gradually add sugar, a cup at a time. Mix well. Scrape sides and bottom of bowl often. When well mixed, add 1 Tbsp. milk. Add more milk if necessary. Keep bowl covered with a damp cloth until ready to use. (If you need pure white icing, substitute shortening for the butter and use clear Vanilla extract.)

(I found this recipe online and tweaked it. I used a butter/margarine combination, no shortening and lemon extract because I was using the frosting on Lemon Sugar Cookies.)