Prepare as above, doubling amounts of all ingredients. Soak beans in 12 cups water in an 8- to 10-quart pot. Cook half the onions and bacon at a time. Cook the beans as above, except stir in 10 cups of water in Step 2. Cook, uncovered, in Step 3 for 1 to 1-1/4 hours, stirring frequently.
Prepare the 25-serving recipe twice (do not double the recipe).
Better Homes and Gardens Test Kitchen Tip
To reheat, cook over medium low heat, stirring occasionally, until bubbling, about 30 minutes.