Stable liquid detergent composition containing a self-structuring surfactant system

A surfactant system, comprising:

• a) 5-50% by weight of an anionic surfactant selected from the group consisting of C10-C14 linear alkyl benzene sulfonates, acid form thereof, and mixtures thereof;
• and
• b) 0.05 to 10% by weight a branched nonionic surfactant that is a branched alkyl alkoxylated alcohol having formula (I):
• wherein the total number of carbon atoms in formula (I) is within the range of 10 to 24;
• R1 and R2 are each independently selected from the group consisting of hydrogen, methyl, ethyl, and propyl, provided that R1 and R2 are not both hydrogen;
• x is an integer from 0 to 10;
• y is an integer from 0 to 10;
• z is an integer from 0 to 10;
• x+y+z is from 4 to 14;
• OA is an alkoxy moiety selected from the group consisting of ethoxy, propoxy, butoxy, and combination thereof;
• and m is an integer from 1 to 3;
• and (c) 0-10% by weight of a linear nonionic surfactant;
• wherein the weight ratio of the anionic surfactant to the branched nonionic surfactant is from 100:1 to 1:1 and wherein said liquid detergent composition exhibits no phase separation after being placed at 5° C. for 48 hours said composition having a first viscosity ranging from 3,500 to 50,000 mPa·s, as measured at a first shear rate of 0.5 s−1, and a second viscosity of no more than 2,500 mPa·s, as measured at a second shear rate of 20 s−1.