Thick and smooth milkshake, full of Müller dairy goodness, oh yeh, and Müllerlicious flavours for daaaays!. Oh Yes We Did. Thick N Smooth Müllerlicious milkshake with an unreal Fudge Brownie taste! Some call it magic, we call it FRijj fudge brownie flavour.. Thick and Smooth. Suitable for Vegetarians. Ultra Heat Treated (UHT) long life fudge brownie flavour milkshake. Source of Calcium, Protein and Vitamin B12. Müller.