Step #1 Note: See the "Vegetable Stock" & "Tomatillo Salsa (Green Salsa)" recipes which are included in this collection.
Step #2 Place the black beans in a medium saucepan with 4 c of the water & bring to a boil.
Step #3 Place the white beans in another medium saucepan with remaining 4 c of water & bring to a boil.
Step #4 Reduce heat to low, cover & cook this until both pots of beans are soft, about 1 hr.
Step #5 remove this from the heat.
Step #6 In another large saucepan, saute 2 slices of the bacon over med-heat/flame until crispy.
Step #7 Remove bacon, saving grease in pan.
Step #8 Add 1/2 of the sliced onions & all of the carrots & cook over medium-low heat until onions are lightly browned, about 15 mins.
Step #9 Then add 1/2 of the garlic & 1/2 tsp of the salt, stirring constantly, until the garlic aroma is released, 12 mins.
Step #10 stir in the the black beans & their liquid, along with the tomato, 1 bay leaf & 1 chipotle chile.
Step #11 Pour in 3 c of the Vegetable Stock.
Step #12 Turn up the heat & bring to a boil.
Step #13 Reduce to a simmer & cook, stirring every once in awhile, uncovered, an extra 30 mins.
Step #14 Repeat the entire procedure with the white beans, bay leaf, onion, using the remaining bacon, salt, garlic, chipotle chile & stock.
Step #15 Remove bay leaves & transfer black bean mixture to a mixer in batches and puree until smooth, pulsing the machine on & off until it begins to liquefy.
Step #16 (Be sure to leave space for the air to escape.
Step #17 ) Return to a clean saucepan.
Step #18 Rinse out mixer & repeat with white bean mixture.
Step #19 Reheat soups over low heat/flame, squeeze half of a lime into each & 1/4 c of Madeira into saucepans & stir this to mix.
Step #20 Adjust Spice uping.
Step #21 Using two ladles, carefully ladle the two soups side by side into one bowl, so that half is black & half is white.