Add butter and finely chopped garlic into a small sauce pan and place over low heat. Cook (stirring occasionally), until butter is melted. Continue to cook, to soften garlic and take the bite off. Remove from heat before garlic begins to get golden (DON'T LET IT GET BROWN).
Stir in chopped parsley and salt. The garlic will settle down and make it easier for you to brush only the melted butter on top of knots before baking.