How to Cook a Frozen Ham 3 Ways

Updated: Feb. 23, 2024

TMB studio

No time to thaw? No problem. We're serving you three foolproof methods for safely—and deliciously—cooking a frozen ham.

Let’s say you forgot to thaw your ham for Easter brunch—or you remembered to move it to the fridge, but it didn’t fully thaw in time. Fear not: Cooking a frozen ham is perfectly safe, according to the USDA Meat and Poultry Hotline. To fully cook, it’ll just take about 50 percent longer than a thawed ham. (Still less time than it takes to thaw!)

Whether you planned to cook your ham in the oven, slow cooker or pressure cooker, you can go right ahead following these simple guidelines for a tender, juicy, flavorful main dish.

1. In a conventional oven

Your trusty oven works wonders when it comes to cooking just about anything, even a frozen ham. Heat your oven to 325°F, then carefully place the ham in a roasting pan with an inch of water inside. Calculate the time needed for your ham to cook in the oven based on its weight. The rule of thumb is to cook for 18 to 20 minutes per pound.

No matter which method you choose, the USDA advises an internal temperature of at least 140° for pre-cooked hams that had been in their original packaging, 145° for uncooked ham, and 165° for leftover ham or meat that’s been re-packaged. And if you don’t already have one, here’s why you absolutely need a meat thermometer.

2. In a slow cooker

If you decide to cook your ham in a slow cooker—and you have a Crockpot large enough to fit it—cook it on the low setting for six to eight hours. If you’re working with a larger frozen ham, you may need to allow up to 12 hours for it to fully cook. (Check the temp with your meat thermometer!)

Try the slow cooker method for an Easter brunch—just set your ham in on low overnight and wake up to a readymade feast. Here are a few more tips for cooking ham in a slow cooker.

3. In a pressure cooker

If you own an Instant Pot, you probably consider it your kitchen BFF. (We can attest!) The beauty of pressure cookers, like slow cookers, is that you can throw all of your ingredients into the pot at once and end up with a delicious meal. Carefully place your ham in the pressure cooker cut-side down, along with all the other ingredients in your recipe. Cook on high pressure for 30 to 35 minutes.

With a little extra cook time, you can make a frozen ham fabulous—and make these simple side dishes while you’re waiting. In addition, consider using these easy leftover ham recipes!

50 Wonderful Ways to Eat Ham for Dinner

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Taste of Home

Sugar-Glazed Ham This old-fashioned ham glaze gives a pretty, golden brown coating—just like Grandma used to make. The mustard and vinegar complement the brown sugar which adds a tangy flavor to this glazed ham recipe. Be prepared to serve seconds! —Carol Strong Battle, Heathville, Virginia Also, try our top rated Easter ham recipes for all of your holiday gatherings. Go to Recipe

Baked Spiral Ham Exps Ft22 19634 St 10 18 1

Baked Spiral HamThis is my favorite spiral ham recipe. It will feed a crowd, or use what's remaining in two recipes. No one groans about ham leftovers when these items are on the menu. —Marilou Robinson, Portland, Oregon