This version of a traditional Punjabi chicken and potato stew uses some shortcuts — boneless chicken and chicken stock instead of whole chicken thighs, and cashew butter in place of ground cashews — to produce a quick, one-pot meal with complex flavors. The quality of the stock heavily influences the end result, so reach for the best. Onion, ginger, garlic, chile powder and garam masala layer on sweetness and heat while cashew butter adds a rich nuttiness. Serve with lemon wedges for a final hit of brightness.