White Miso Barbecue Sauce

White miso (actually it’s beige in color) is the most readily available miso and is best known as an ingredient in miso soup and miso salad dressing. Called shiro-miso in Japanese, it’s made with soybeans and rice, which give it a sweet flavor. This recipe breaks with tradition in two ways. First, I’ve substituted mayonnaise for the customary egg yolks. Sometimes the sauce is served warmed but not cooked, so I prefer not to use raw yolks. Second, I use vegetable stock instead of dash