Composure from Chaneice Howson allowed Denva Kirk to carry the ball forward and chip the keeper for the opener.
The second goal came came when a through ball from Howson to Jess Hooley saw her round the keeper and slot into the empty net.
Dronfield pulled one back after the break, but Jamie Lea Grace got on the score sheet when a Kia Wallis cross fell to her and she fired home.
Grace got her second with five minutes to go, set up by Howson andGeorgia Hunt.
Star Player award went to Howson.