Much of the next quarter of the game was spent in a tight battle with both sides probing each other's defence but without breakthrough.
That was until Ulster Captain Stacey-Lea Kennedy made a break and ran in under the posts with the try duly converted giving Ulster a 7-3 lead.
Munster then turned defence into attack and began to apply pressure inside the Ulster 22 and winning a penalty. This gave back-row Laura Guest the opportunity to take a quick tap and go resulting in a magnificent try taking Munster to the break leading 10-7.
Playing with the wind in the second half Munster had the advantage and used it to pin Ulster back who, to their credit, stood strong and repelled the Munster attack.
Mid-way through the second half Munster centre Rea split the Ulster defence with a move from a Munster scrum to the left of the pitch just outside the 22 and got over the line. Rea added the conversion to leave the score 15-7 in Munster's favour.
Munster will complete their series this Saturday, 14th December against Leinster in Thomond Park (kick-off 1pm). Both sides remain undefeated going into the match and will contest for the title.
Munster's Laura Guest on the charge
Munster's Ger Rea lines up for the conversion