Everyday ingredients and a quick-mixing method make these cookies convenient. The chewy texture and robust peanut flavor make them irresistible. We wanted peanutty peanut butter cookies with crisp edges and moist, chewy centers, but because peanut butter has a fair amount of starch, more peanut butter in the dough resulted in drier, more stunted cookies. So in pursuit of more chew, we examined the fat ratios. In the past, we've found that a ratio of about 30 percent saturated fat to 70…
