How To Cook A Purple Yam

Purple yams bring a striking color and earthy sweetness to any dish, and preparing them properly starts with understanding their unique texture. If you want to know how to cook a purple yam, the process is simpler than it looks. This guide walks you through boiling, steaming, roasting, and even microwaving this vibrant root vegetable.

Purple yams, also called ube in some regions, are denser and starchier than regular potatoes. That means they need a little more time and attention. But once you get the basics down, you can use them in desserts, side dishes, and hearty mains.

What Exactly Is A Purple Yam

A purple yam is a root vegetable native to Southeast Asia. It has rough, dark brown skin and vivid purple flesh inside. The flavor is nutty and slightly sweet, similar to a chestnut mixed with a regular sweet potato.

Don’t confuse it with a purple sweet potato. They look alike, but purple yams are drier and starchier. This affects how you cook them and how much liquid you need.

Key Differences You Should Know

• Purple yams have thicker skin that must be peeled before most cooking methods.
• They contain more starch, so they hold their shape well after boiling.
• The flesh oxidizes quickly, turning brown when exposed to air.
• They take longer to soften than orange sweet potatoes.

How To Cook A Purple Yam

You can cook a purple yam in several ways. Each method changes the texture and flavor a bit. Pick the one that fits your recipe and the time you have.

Method 1: Boiling Purple Yams

Boiling is the easiest method for beginners. It gives you soft, mashable yams perfect for purees and soups.

1. Wash the yams under cold water to remove dirt.
2. Peel the skin with a sharp vegetable peeler. Wear gloves if your skin is sensitive, since the sap can cause itching.
3. Cut the yams into 1-inch cubes. Try to keep the pieces the same size so they cook evenly.
4. Place the cubes in a large pot and cover them with cold water by about 2 inches.
5. Add a pinch of salt to the water.
6. Bring to a boil over high heat, then reduce to a simmer.
7. Cook for 15 to 20 minutes, until a fork slides in easily.
8. Drain the water and use the yams right away.

One tip: add a squeeze of lemon juice to the water. It helps keep the purple color bright instead of turning gray.

Method 2: Steaming Purple Yams

Steaming keeps more nutrients in the yam and prevents it from getting waterlogged. This is my favorite way for making ube halaya or purple yam jam.

1. Peel and cut the yams into chunks, about 2 inches thick.
2. Set up a steamer basket over a pot of boiling water.
3. Arrange the chunks in a single layer in the basket.
4. Cover and steam for 20 to 25 minutes.
5. Check doneness by piercing with a knife. It should go in with no resistance.
6. Remove from heat and let them cool slightly before mashing.

Steamed yams come out fluffy and dry, which is ideal for baking and desserts.

Method 3: Roasting Purple Yams

Roasting brings out the natural sweetness and gives you crispy edges. It’s great for savory dishes or as a simple side.

1. Preheat your oven to 400°F (200°C).
2. Peel the yams and cut them into wedges or 1-inch cubes.
3. Toss them in a bowl with olive oil, salt, and pepper. You can add garlic powder or rosemary too.
4. Spread the pieces on a baking sheet in a single layer. Don’t crowd them or they will steam instead of roast.
5. Roast for 25 to 30 minutes, flipping halfway through.
6. They are done when the edges are browned and a fork goes in easily.

Roasted purple yams work well in grain bowls, salads, or just eaten on their own with a dipping sauce.

Method 4: Microwaving Purple Yams

Short on time? The microwave is your friend. This method is fast but gives a softer texture.

1. Wash the yam and prick it all over with a fork.
2. Wrap it in a damp paper towel.
3. Microwave on high for 5 minutes.
4. Flip it over and microwave for another 3 to 5 minutes.
5. Let it rest for 2 minutes before peeling.

The skin will slip off easily once it’s cool enough to handle. Then you can mash it or cube it for recipes.

Tips For Perfect Purple Yams Every Time

• Always peel before cooking unless you plan to bake and scoop out the flesh later.
• Use a stainless steel knife, not carbon steel, to avoid discoloration.
• Cook them fully. Undercooked purple yams are hard and chalky.
• Add acid like lemon or vinegar to boiling water to preserve color.
• Store raw peeled yams in cold water in the fridge for up to 24 hours.
• Mash while warm for the smoothest texture.

How To Store Cooked Purple Yams

Cooked purple yams keep in the fridge for 3 to 4 days in an airtight container. You can also freeze them for up to 3 months. Thaw in the fridge overnight before reheating.

For mashed yams, add a little butter or coconut milk when reheating to bring back the creamy texture.

Common Mistakes To Avoid

Many people treat purple yams like regular potatoes. That leads to soggy or bland results. Here are the mistakes I see most often.

• Not peeling them. The skin is tough and doesn’t soften well.
• Boiling them whole. They take forever and cook unevenly.
• Overcooking. They turn mushy and lose their color.
• Skipping the acid. Without it, the purple fades to a dull gray.
• Using them in recipes that call for orange sweet potatoes without adjusting liquid.

Purple yams absorb less water than sweet potatoes. So if you swap them in a recipe, reduce the liquid by about a quarter.

Serving Ideas For Purple Yams

Once cooked, purple yams are versatile. You can mash them with butter and milk for a colorful side. Or blend them into smoothies for a natural purple hue.

They also shine in desserts. Try them in ube ice cream, purple yam cake, or simple jam spread on toast. For savory dishes, add cubes to curries, stews, or fried rice.

Now that you know how to cook a purple yam, you can experiment with your favorite recipes. Start with boiling or steaming if you’re new, then move on to roasting for a deeper flavor. The bright color and sweet taste will make any meal more interesting.