Use your kerrygold to make ghee. Problem solved.
Making ghee is rediculously easy, plus you get to control the quality of the ingredients.
Cover mesh strainer with a few layers of cheesecloth. Take 2 sticks butter. Melt at low heat in a pan. Continue to cook until foamy. Watch carefully, and cook until the milk solids will begin to brown slightly and sink to the bottom of the pan. Remove from heat. Pour butter through strainer into a heatproof jar. Allow to cool, and store in the fridge.