I''m making rack of lamb tonight and normally I encrust it with a course brown mustard and bake it. Since our oven is broken I''m going to have to cook it on the stove which I don''t think works well for "encrusted" anything. I was thinking of making a mustard sauce on the side to dip it in. Can I mix the course brown mustard with sour cream or plain yogurt to make the sauce? I''ve never mixed those together so I *think* they sound ok together but wanted another opinion.