This is a healthier, lighter spin on cream cheese frosting. You can leave out the cream cheese totally and add extra butter if you like. They won't recognize Fage, but FAGE TOTAL YOGURT is HIGHLY recommended because of texture. it's thicker than most, at least as thick as full fat sour cream (i think thicker!) so others could make a runnier frosting. for thickest creamiest results use full fat fage.