Slow Cooking

Cover the slow cooker and cook until the potatoes are completely tender.

Depending on the size of the potato slices and the particular slow cooker, this can take several hours.

The potatoes should be easy to pierce with a fork when they are finished.

The onions should be soft and golden, with some pieces becoming almost caramelized.

Avoid constantly opening the lid because slow cookers lose heat whenever the lid is removed. Keeping the lid closed helps maintain a consistent cooking environment.

If your slow cooker tends to cook very aggressively, check the potatoes toward the end of cooking to make sure they are not becoming excessively soft.

What Makes the Aroma So Good?

The smell comes largely from the onions.

Raw onions contain sulfur-containing compounds that change as the onions are heated. As they cook, their sharpness decreases and their flavor becomes sweeter and more savory.

Butter or olive oil helps carry those flavors throughout the dish.

The potatoes absorb some of the moisture and seasoning from the onions, creating a combination that is much more flavorful than either ingredient might be on its own.

This is why simple cooking can sometimes produce such impressive results.

You do not necessarily need dozens of spices when you have ingredients that develop flavor naturally during cooking.

A Budget-Friendly Meal

Potatoes and onions have historically been important staples in many households because they are relatively inexpensive, versatile, and filling.

A dish like this can stretch a small grocery budget while still providing a satisfying meal.

Potatoes provide carbohydrates and several important nutrients, including potassium and vitamin C. They also provide some fiber, especially when the skin is eaten.

Onions provide fiber and various plant compounds, including quercetin and other antioxidants.

However, this meal is not nutritionally complete by itself for everyone.

The main limitation is protein.

If you are eating it as a full meal, adding a source of protein can make it more balanced.

You could serve the potatoes with:

• Eggs
• Beans
• Lentils
• Chicken
• Fish
• Plain yogurt
• Cottage cheese
• Another protein-rich food of your choice

The potato and onion mixture can remain the centerpiece while the additional food provides nutrients that are limited in the basic recipe.

How to Make the Potatoes Even More Flavorful

Although the traditional three-ingredient version is delicious, there are several simple ways to change the flavor.

Add Garlic

A few cloves of sliced or minced garlic can give the dish a deeper savory character.

Add garlic later in the cooking process if you are cooking at higher temperatures because garlic can become bitter if heavily browned.

Add Paprika

A little paprika provides warmth and a subtle earthy flavor.

Smoked paprika can give the potatoes a smoky character without adding meat.

Add Herbs

Thyme, rosemary, parsley, or oregano can work particularly well.

Fresh herbs are best added near the end, while dried herbs can be added earlier.

Add Cheese

If you want a richer version, sprinkle grated cheese over the cooked potatoes and allow it to melt.

Cheddar, mozzarella, Parmesan, or another favorite cheese can work.

Keep in mind that cheese increases the calorie, saturated fat, and sodium content of the dish.

Add Peppers

Sliced bell peppers can be cooked together with the onions and potatoes.

They add color, sweetness, and additional nutrients.

Can You Make It in the Oven?

Absolutely.

The same basic combination can be prepared in a baking dish.

Arrange the potato slices and onions in a greased baking dish. Add butter or olive oil and season with salt and pepper.

Cover the dish with foil and bake until the potatoes begin to become tender.

Then remove the foil and continue cooking until the potatoes are completely tender and the edges become golden.

The exact cooking time depends on the thickness of the potatoes and the oven temperature.

Thinner slices will cook more quickly than thick slices.