Chicken gizzards are tough because they’re made of dense, circular muscle fibers reinforced by compact collagen tendons. Tenderizing them comes down to breaking through that connective tissue, and you have several reliable ways to do it: long simmering, acidic soaking, pressure cooking, or a combination of methods. The right approach depends on how you plan to cook them.
Why Gizzards Are So Tough
A gizzard is essentially a grinding organ. The muscle fibers run in tight, concentric circles between two thick tendons made of densely packed collagen. Unlike a chicken breast, where you’re dealing with relatively simple muscle, a gizzard has that tough tendon structure woven right through it. The boundary between muscle and tendon is sharp, with no gradual blending of the two tissues. This is what gives gizzards their characteristic chew and why they resist quick, high-heat cooking.
Trim Before You Cook
Most gizzards sold at the store are already partially cleaned, but they still have a silverskin membrane on either side of the meat that you should deal with before cooking. If you’re frying or grilling gizzards, peel or slice off that silverskin with a small sharp knife. It stays tough and papery even after cooking and will ruin the texture of a fried gizzard.
If you’re slow cooking or braising for several hours, you can skip this step. The silverskin melts away during extended cooking and becomes unnoticeable. You may also see a hard inner plate (the “grinder plate”) if your gizzards aren’t fully cleaned. Slice the two lobes of meat away from it and discard it.
Simmering and Braising
Moist heat is the most traditional way to tenderize gizzards. Collagen in the tendons starts converting to gelatin when held at a steady simmer, and gizzards need enough time for that conversion to work through their dense structure.
A common approach is to place the gizzards in a saucepan with water and salt, bring to a boil, then reduce to a low simmer. Plan on at least 30 to 45 minutes of gentle simmering for gizzards you intend to fry afterward. If tenderness is the only goal, longer is better. Braising for 1.5 to 2 hours with aromatics like onions and garlic produces a noticeably softer result. Slow cooker methods that run 4 to 8 hours will break them down even further, to the point where the silverskin dissolves completely and the meat practically falls apart.
Many recipes use simmering as a first step. You boil the gizzards until they’re tender, then bread and fry them for a crispy exterior. This two-stage approach gives you the best of both worlds: tender inside, crunchy outside.
Buttermilk Soaking
Buttermilk is the classic tenderizer for fried gizzards, especially in Southern cooking. The mild acidity penetrates the muscle and breaks down the sinewy composition over time, while adding a tangy flavor that comes through even after frying.
Place trimmed gizzards in a bowl, pour in enough buttermilk to fully submerge them (roughly 1.5 cups per pound), and refrigerate. The minimum soak is 8 hours, but 24 hours produces better results. You can safely hold them in buttermilk for up to 2 days. This method works as an alternative to pre-boiling. Instead of stewing the gizzards first, the extended buttermilk bath softens them enough to go straight into the fryer. The texture will be chewier than a pre-boiled gizzard, but with a more pronounced, slightly gamey flavor that offal fans tend to prefer.
Baking Soda (Alkaline Method)
Baking soda raises the pH on the surface of the meat, which prevents the proteins from tightening up during cooking. It’s a technique borrowed from Chinese velveting, where it’s commonly used on chicken breast, and it works on gizzards too.
Use about 3/4 teaspoon of baking soda per 8 ounces of gizzard pieces. Toss the gizzards with the baking soda and let them sit for 15 to 20 minutes. Then rinse thoroughly under running water and pat dry. This step is not optional. Baking soda left on the meat creates an unpleasant soapy, metallic taste. Once rinsed, cook the gizzards using any method you prefer. The alkaline treatment makes the biggest difference in quick-cook preparations like stir-frying, where you don’t have hours of braising to break down the collagen naturally.
Pressure Cooking
A pressure cooker compresses hours of simmering into minutes. For 1 pound of gizzards, cook at high pressure for 25 minutes with some chopped onion, garlic, and enough water to cover. The pressurized steam forces heat deep into the connective tissue much faster than a stovetop simmer can. The result is gizzards that are tender throughout, with a texture closer to what you’d get from 2 hours of braising. This is the fastest route to fork-tender gizzards if you own an Instant Pot or similar electric pressure cooker.
After pressure cooking, you can eat them as-is in a broth, slice them for salads, or bread and flash-fry them. The broth left behind is rich in gelatin from all that dissolved collagen and makes a solid base for gravy or soup.
Combining Methods for Best Results
The tenderest gizzards usually come from stacking techniques. A practical combination: soak trimmed gizzards in buttermilk overnight, then simmer them for 30 to 40 minutes, then dredge in seasoned flour and deep-fry. Each step addresses the toughness from a different angle. The acid loosens the protein structure, the simmering dissolves collagen, and the frying adds texture without re-toughening the meat.
Another effective pairing is the baking soda treatment followed by pressure cooking. The alkaline soak keeps the exterior proteins tender while the pressure cooker handles the deep connective tissue. This combination works well for gizzards destined for stir-fries or noodle soups.
Regardless of which method you use, gizzards need to reach an internal temperature of 165°F for food safety. With most of these techniques, you’ll blow past that threshold well before the meat is tender enough to eat comfortably, so safety and texture tend to align naturally. The real question isn’t whether they’re cooked through, but whether you’ve given the collagen enough time or chemical help to soften.