By GUY PATRICK
A judge sparked fury by giving Rebecca Stevenson, 22, just a 20-week suspended jail sentence.
She had left the children - aged between THREE MONTHS and four years - in appalling conditions with no food.
Stevenson returned at 10.30pm the next evening after snorting cocaine and downing booze with friends.
Judge Norman Wright said: "We've all seen Home Alone. But the consequences of children as young as these being left to fend for themselves are too dreadful to think about."
The home was littered with empty bottles and kitchen knives were within reach. The judge called it a "potential time-bomb". He also gave her an evening curfew.
But Tory MP Philip Davies said: "If a judge feels so strongly, surely that should be echoed in his sentence."
Mark Wallace, of the TaxPayers' Alliance, said: "This sentencing beggars belief."
Stevenson put the kids to bed, downed a bottle of wine then went out with friends, Preston Crown Court heard.
A relative broke into the home in Blackburn, Lancs, after spotting Stevenson's eldest daughter, four, leaning from a window sobbing: "Where's mummy?"
The three-month-old boy was found "pale and grey" in his cot and covered in vomit. A one-year-old lad was "hysterical" and urine-soaked.
The four-year-old and her sister, three, had climbed chairs to hunt for food.
The children are now living with grandparents. Stevenson, who admitted neglect, gets supervised access.