Pork Bone Broth Recipe Slow Cooker: Rich Collagen-Infused Elixir in Hours

This slow cooker method extracts maximum collagen and gelatin from pork bones with minimal effort. I developed this technique while working at The Smoky Pig, where we use every part of the animal.

The key is a long, gentle simmer that breaks down connective tissue without overcooking. Apple cider vinegar helps draw out minerals, while vegetables add depth to the finished broth.

You’ll end up with a rich, amber liquid that gels when cooled—a sign of high collagen content. The aroma alone makes the 12-hour process worthwhile.

Strain and store for soups, stews, or sipping as a restorative tonic. This foundation elevates any dish it touches.

Ingredients for Pork Bone Broth Recipe Slow Cooker

Rich, collagen-packed broth starts with bones and a few humble veggies. Nothing complex here.

The bones are everything here. Ask your butcher for pork marrow or knuckle bones—they’re loaded with collagen. The Smoky Pig taught me that joints and feet (yes, feet) give the richest gel, but bones work great. Local butchers or Whole Foods usually have good options. Look for bones with plenty of connective tissue—this is what breaks down into gelatin.

No apple cider vinegar? White vinegar or lemon juice works in a pinch. Out of fresh herbs? Dried thyme and parsley flakes at half the amount still add flavor. The onion skin adds color, so don’t peel it. If you’re missing celery, fennel or an extra carrot can stand in. Pro tip: save veggie scraps in a freezer bag for future broth.

Broth keeps 5 days in the fridge or 6 months frozen. The fat cap that forms on top? That’s liquid gold—skim it off and use for cooking. Gelled broth means you nailed the collagen extraction (worth the slow cooker space).

Step-by-Step Instructions for Pork Bone Broth

Here’s the method I use to extract maximum flavor and collagen from pork bones.

Step 1: Roast the Bones for Depth of Flavor

Preheat your oven to 400°F. Spread the 2 lb Pork Bones on a baking sheet and roast for 20-25 minutes until they’re deeply browned. This caramelization step is non-negotiable—it transforms bland broth into rich, complex liquid gold.

You’ll notice the kitchen starts smelling incredible when they’re ready. The bones should have dark, caramelized spots. Don’t skip this, even if you’re short on time. I’ve tried both ways, and the roasted version always wins on flavor.

Step 2: Combine All Ingredients in the Slow Cooker

Transfer the roasted bones to your slow cooker. Add the 12 cups Cold Water, making sure the bones are fully submerged. Then add the 0.25 cup Apple Cider Vinegar, 1 whole Yellow Onion, 2 whole Carrots, 2 whole Celery Stalks, 4 cloves Garlic Cloves, 2 whole Bay Leaves, 1 tbsp Black Peppercorns, and 1 tbsp Salt.

The vinegar helps extract minerals from the bones, but don’t worry—it won’t make your broth taste sour. I add the vegetables in large chunks since we’ll strain everything later. No need to peel the carrots or onion—those skins add color and nutrients.

Step 3: Add Herbs and Begin the Slow Cook

Toss in the 0.25 cup Fresh Parsley and 4 slices Fresh Thyme. Set your slow cooker to low heat and cook for 12-18 hours. The longer you go, the more gelatin you’ll extract, but anything beyond 24 hours starts breaking down the collagen too much.

You’ll see a layer of fat and impurities rise to the top during cooking. I don’t bother skimming during the process—it’s easier to handle this after cooking when everything’s cooled slightly. The house will smell amazing, like a cozy kitchen from a grandmother’s era.

Step 4: Strain and Store Your Broth

After cooking, let the broth cool slightly (about 30 minutes). Then strain through a fine-mesh sieve into a large bowl, discarding all solids. At this point, you can skim off any fat that’s solidified on top if you prefer a leaner broth.

I like to portion the broth into quart-sized containers. It’ll keep in the fridge for up to 5 days or can be frozen for 6 months. When cooled, you should see a layer of gelatin on top—that’s the collagen we worked so hard to extract. The broth should be a rich amber color with deep, meaty flavor.

Make-Ahead Tips for This Recipe

Batch Prep Method

I always make double batches in my 8-quart slow cooker—just double all ingredients except the vinegar. The extra volume extracts just as much collagen without needing more acid. This way, I have broth ready for weeks of cooking at The Smoky Pig. 💪

Freezing for Later

Pour cooled broth into pint-sized mason jars or silicone muffin molds for smaller portions. Leave 1-inch headspace for expansion. Once frozen solid, transfer cubes to freezer bags for easy storage. I label everything with the date—it’s easy to forget.

Fridge Storage Tips

Store strained broth in airtight containers in the fridge for up to 5 days. The fat cap that forms on top is actually flavorful—I skim and save it for cooking. If you won’t use it within a week, freeze it immediately to preserve freshness.

Quick Thaw Method

For last-minute meals, thaw frozen broth overnight in the fridge or use the microwave’s defrost setting. I place the container in a bowl of cold water for 30-minute intervals, changing the water each time. Never thaw at room temperature.

Broth Concentrate

Simmer strained broth over medium heat until reduced by half for a more intense flavor base. I use this concentrate for sauces and gravies. Store in ice cube trays—each cube is about 1 oz of pure pork essence for easy portioning.

Frequently Asked Questions