1 cup canned refried beans
2 tablespoons honey
1 1/2 tablespoons Marmite, Vegemite
1 tablespoon beer
Place all ingredients in a blender, and blend at high speed for about 2 minutes, stopping the machine, to scrape the sides with a rubber spatula.
When the mixture is blended, to a uniformly smooth paste, transfer the contents of the blender to a shallow plastic container with a tight fitting lid and refrigerate until needed.
This substitute was suggested by a reader who swears by it. Source: Jennifer Brennan "Cuisines of Asia" Tumon., Guam 1984