What could be better than a soft sugar cookie topped with a pink buttercream frosting for Valentine’s day? I can’t think of much! These cookies are chewy inside and crisped on the edges, the buttercream is soft and naturally colored with raspberry juice, and both the cookies and cream are made with mixed berry Kefir, adding a little healthy touch to them!  This post is sponsored by Lifeway Kefir,  but the opinions and thoughts are mine. Thanks for supporting the brands that make EyeDocBakes possible!   What You’ll Need. . . flour baking powder baking soda cream of tartar cornstarch salt…