1 pkg. yellow cake mix
1/2 c. light rum
1/2 c. salad oil
1/2 pkg. instant vanilla pudding
1/2 c. water
4 eggs, beaten
1/2 c. pecans, chopped (opt.)

SAUCE:

1/2 c. water
1/4 c. rum
3/4 c. sugar, or to taste
1 stick butter

Mix all ingredients, except for sauce, together at low speed until moistened. Mix at medium speed for 2 minutes. Bake in a greased and floured bundt pan at 350 degrees for 50 to 60 minutes. Remove from pan. Place on rack to cool. Prepare sauce. Make holes in cake with a skewer and pour sauce over cake slowly so some will run down into holes. For sauce, mix all ingredients. Bring to a boil. Drizzle over cake.