Root Beer without sauce

FOR THE CAKE 1 tablespoon unsalted butter, at room temperature, for the pan 1 1/2 cups plus 1 tablespoon all-purpose flour One 12-ounce bottle (1 1/4 cups)[...]

4 slices applewood-smoked bacon, cut crosswise into 1-inch pieces 3 1/2 cups chopped onions 2 garlic cloves, minced 4 15-ounce cans cannellini (white kidney[...]