This is a recipe that I received from Recipe Lion. I receive recipes from them from time to time. This is a very good, moist cake. We never have rum in the house so I used rum flavoring and it worked out fine, but the recipe does call for the real thing, so if you have it, by all means, go with that, but please enjoy this recipe.
Beat Bisquick, flour, soda together. Beat one cup of the sugar, sour cream, 1/2 cup of the margarine, eggs and vanilla extract for 3 minutes. Add flour mixture and beat for one minute more. Mix in pineapple and two tablespoons of rum or rum flavoring.
Pour into a well greased bundt pan and bake at 350 degrees for 45 minutes. To make the glaze, combine 3/4 cup of sugar, 1/4 cup margarine and the reserved pineapple juice. Stir over low heat to blend. Add 2 Tbs rum or rum flavoring and stir well. Remove cake from oven and spoon half of glaze over cake. After it has set, spoon on the rest. Sprinkle with nuts.