Norpro. If you do one cup batches you need the two cup size. NEVER fill more than halfway and ALWAYS grab with a glove.http://www.ebay.com/itm/NORPRO-SILICONE-MEASURE-MIX-STIR-AND-POURER-2-CUP-/281075023341?pt=Measuring_Cups&hash=item4171607ded#ht_2505wt_758
Cook the plastic in them.