Estrellita Poblana IV’s menu, horchata, tortilla chips and salsa, fresh guacamole Mexican food is one of the few cuisines Manhattan does best. A friend of mine asserted that the Bronx has the best Mexican, even better than Brooklyn. With a statement like that, how can I not try it? We schlepped all the way up to Estrellita Poblana IV, a Bronx based mini-chain of restaurants that serves very authentic Mexican fare for dinner. We started off with the fresh in-house made guacamole ($5.45) that’s terribly addictive to eat with the tortilla chips. The horchata ($2.50) was refreshing to drink –..