Ham Soup Recipe
A scientifically optimized ham soup recipe designed to maximize collagen extraction from ham bones and achieve perfect starch gelatinization using potatoes.
- Gelatin extraction from the ham bone creates a rich, velvety body without heavy cream.
- Controlled starch gelatinization from potatoes naturally thickens the broth.
- Acid balancing at the finish cuts through heavy animal fats for a clean profile.
The secret to an exceptional ham soup lies in the systematic extraction of gelatin from the ham bone rather than relying on store-bought broths. By simmering a leftover meaty ham bone at a bare simmer, you dissolve the collagen matrix into gelatin, which provides a rich, lip-coating body. This foundational stock transforms simple vegetables into a deeply cohesive dish.
During this gentle simmering process, starch gelatinization plays a critical role in establishing the soup's texture. When you add waxy or all-purpose potatoes, such as those used in a classic mini potatoes recipe, their starch granules absorb water and swell. At approximately 140°F to 160°F (60°C to 71°C), these granules burst, releasing amylose and amylopectin into the liquid to act as a natural, gluten-free thickener. This process eliminates the need for a heavy flour roux, keeping the pork flavor clean and unadulterated.
Sweat your mirepoix—onions, carrots, and celery—slowly in butter to build a sweet, aromatic base before introducing the liquid. If you want to deepen the savory undertones, you can even incorporate a spoonful of quick caramelized onions during this initial sauté phase.
Temperature control is paramount.
Boiling the soup rapidly will emulsify the rendered pork fat into the broth, resulting in a cloudy, greasy liquid. Instead, maintain a gentle bubble where only a few surface bubbles break every second. This preserves clarity and prevents the ham meat from turning tough and stringy due to rapid protein denaturation.
Ham Soup
Ingredients
- 1 leftover meaty ham bone
- 2 tablespoons unsalted butter
- 1 medium yellow onion, diced
- 3 medium carrots, sliced into 1/4-inch rounds
- 3 ribs celery, sliced into 1/4-inch pieces
- 4 cups low-sodium chicken broth
- 2 cups water
- 1.5 pounds Yukon Gold potatoes, peeled and diced into 1/2-inch cubes
- 2 cups diced cooked ham
- 1 bay leaf
- 1/2 teaspoon freshly cracked black pepper
- 1 tablespoon apple cider vinegar
Directions
- Melt the butter in a large heavy-bottomed Dutch oven over medium heat. Add the diced onion, carrots, and celery, cooking for 6 to 8 minutes until the vegetables are softened but not browned.
- Pour in the chicken broth and water, then submerge the ham bone and add the bay leaf. Bring the liquid to a bare boil, then immediately reduce the heat to low to maintain a gentle simmer.
- Simmer uncovered for 45 minutes, allowing the collagen in the bone to dissolve into gelatin and infuse the broth with savory depth.
- Stir in the diced Yukon Gold potatoes and the black pepper. Continue to simmer for 20 to 25 minutes, or until the potatoes are completely fork-tender.
- Remove the ham bone from the pot. Shred any remaining meat off the bone, discard the bone and bay leaf, and return the shredded meat to the pot along with the additional diced cooked ham.
- Simmer for an additional 5 minutes to heat the ham through. Remove the pot from the heat and stir in the apple cider vinegar to balance the rich fats before serving.
Notes
Always adjust seasoning at the very end of cooking to prevent over-salting.
- Use Diamond Crystal Kosher Salt for seasoning adjustments; if substituting Morton's kosher salt, reduce the volume by 50% to prevent over-salting the naturally briny ham broth.
- The addition of a mild acid like apple cider vinegar at the very end of cooking alters the pH of the soup, which brightens the flavor profile and breaks up the heavy perception of rendered pork fat on the palate.
- If you add the potatoes too early in the simmering process, they will overcook, disintegrate entirely, and turn the soup into a gummy paste. Prevent this by waiting until the ham bone has simmered for at least 45 minutes before adding the potato cubes.
- After 24 hours in the refrigerator, the starch retrogradation process will cause the soup to thicken significantly as the amylose molecules realign into a gel network.
- If you do not have a heavy-bottomed Dutch oven, a thick-walled stainless steel stockpot can be used, but you must reduce the heat slightly to prevent hot spots from scorching the bottom-dwelling potatoes.
Serving Suggestions
Complete this comforting meal by pairing the hot soup with elements that offer contrasting textures and sharp flavors to cut through the rich pork broth.
- Warm slices of crusty challah to absorb the savory, gelatin-rich broth.
- A side of sharp, buttery zucchini cornbread to provide a sweet and crumbly textural contrast.
- A crisp, acidic green salad dressed with a sharp vinaigrette to cleanse the palate between spoonfuls.
- A toasted Harrison Ford grilled cheese sandwich, using sharp cheddar to complement the smoky undertones of the ham.
Storage and Reheating
Transfer the cooled soup to an airtight glass container. Store it in the coldest zone of your refrigerator, typically the back of the bottom shelf, for up to 4 days.
For longer storage, freeze the soup in heavy-duty freezer bags or rigid plastic containers for up to 3 months. Leave 1 inch of headspace at the top to allow for liquid expansion during freezing. Note that the potatoes will undergo structural degradation upon thawing, becoming somewhat soft and grainy due to water loss from the frozen starch cells.
To reheat, transfer the soup to a saucepan over medium-low heat and add 3 tablespoons of water to loosen the gelled starch.
Alternatively, microwave individual portions in a microwave-safe bowl covered with a damp paper towel on high power for 3 minutes. Stir the soup halfway through to ensure even heat distribution and prevent cold spots.
Ingredient Substitutes
You can easily adapt this soup to utilize ingredients you have on hand without compromising its structural integrity.
- Ham bone substitute: Use 2 smoked ham hocks or 1 smoked pork shank at a 1:1 ratio. Increase the initial simmer time by 15 minutes to fully extract the collagen from the tougher connective tissues.
- Yukon Gold potatoes substitute: Use Russet potatoes at a 1:1 ratio. Note that Russets contain more starch and less moisture, meaning they will break down more easily and make the soup significantly thicker; stir gently to keep them intact.
- Butter substitute: Use olive oil or rendered bacon fat at a 1:1 ratio. If using bacon fat, reduce any added salt in the final steps as bacon fat introduces additional sodium to the mirepoix.
- Chicken broth substitute: Use vegetable broth or water at a 1:1 ratio. If using water, ensure you simmer the ham bone for an extra 20 minutes to build a sufficiently flavorful base.
This ham soup is a masterclass in utilizing simple ingredients to build complex, comforting flavors through basic kitchen science. By controlling your simmer and understanding starch gelatinization, you will produce a velvety, satisfying bowl every single time. Keep a close eye on your heat, adjust your seasoning at the very end, and enjoy the rich rewards of patient cooking.