The hot favourite, with odds as short as 2-1, went well throughout the entire one mile, four furlong race, keeping pace with 9-4 shot Venus De Milo before pulling away as she romped to victory.
Venus De Milo finished in second with Secret Gesture in third.
Following the victory, jockey William Buick said:
"I'm so delighted for the filly.
"She's shown everybody her full potential and it's really nice she did it so well.
"When the ground's like this it can be hard to make up ground but she saw it out really well, she was awesome today. She really bounced off the ground."