This is a cracking recipe that I love. Tinned baked beans will never cut it again.
Achieving proper consistency in bean dishes relies heavily on thermal mass and heat distribution. A heavy cast-iron Dutch oven or a thick-walled ceramic casserole with a tight-fitting lid is essential here. Thin metal baking dishes will scorch the tomato sugars before the starches inside the cannellini beans can fully break down and thicken the surrounding liquid. When heating the initial aromatics, ensure the oil reaches 175 degrees Celsius before introducing the garlic and onions to prevent them from steaming instead of sweating. Retaining a small amount of the canning liquid provides natural starches that act as an emulsifier when combined with the balsamic vinegar and plum tomatoes.
Traditional regional variations often rely on long hours of indirect dry heat to concentrate flavors. Operating the oven at 180 degrees Celsius creates a gentle convection current under a closed lid, allowing the Worcestershire sauce and smoked paprika to permeate the legumes without boiling them into mush. Leave the lid slightly cracked during the final fifteen minutes of the one-hour baking window if the mixture appears too thin. The resulting sauce should cling to the back of a spoon with a deep, glossy finish before spooning over toasted sourdough.