1 piece (medium) of Baked half-cooked onion (80 g) has 33 calories. That works out to 41 calories per 100 g. It contains 7.4 g of carbs, 0.9 g of protein, 0.1 g of fat and 1.3 g of fiber. Its 5.8 mg of Vitamin C covers 6% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.

Baked half-cooked onion Nutrition Facts

Selected: 1 piece (medium) · 80 g

KCAL / 80G

Carbs

7.4g

· 3% DV

Protein

0.9g

· 2% DV

Fat

0.1g

· 0% DV

Fiber

1.3g

· 5% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 87% · Protein 11% · Fat 2%

Baked half-cooked onion nutrition facts table · 1 piece (medium) (80 g)

Nutrient	Amount	% DV
Calories	33 kcal
Total fat	0.1 g	0%
Saturated fat	0.02 g	0%
Trans fat	0 g
Sodium	3.2 mg	0%
Total carbohydrate	7.4 g	3%
Fiber	1.3 g	5%
Protein	0.9 g	2%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Medium Baked half-cooked onion?

Serving	Amount	Calories
1 piece (medium)	80 g	33 kcal
1 slice (thin)	20 g	8 kcal
1 slice (thick)	40 g	16 kcal
1 piece (small)	50 g	21 kcal
100 g	100 g	41 kcal
1 serving (medium)	100 g	41 kcal
1 piece (large)	120 g	49 kcal
1 serving (large)	150 g	62 kcal

Calculated from 41 calories per 100 g.

Frequently Asked Questions About Baked half-cooked onion

How do you make baked half-cooked onion?

To make baked half-cooked onion, peel the onion and bake it whole or halved until the outside softens while the center stays slightly firm. Check it as it cooks, since smaller onions will be ready sooner.

Why bake an onion only halfway?

Baked half-cooked onion keeps a little bite while its outer layers turn sweet and lightly caramelized. That contrast makes it useful as a side or topping when you want onion flavor without the soft, collapsed texture of fully cooked onion.

Which onions work best for baked half-cooked onion?

Yellow and white onions both work well for baked half-cooked onion. Choose onions of similar size so they cook at roughly the same pace, and avoid very small ones if you want the centers to remain distinct rather than soften completely.

How do you stop baked half-cooked onion from burning on the outside?

To keep baked half-cooked onion from burning, arrange the onions in one layer and check them as they roast. If the outside is browning before the center softens, cover them loosely and take them out while the middle is still slightly firm.

Do you peel baked half-cooked onion before eating it?

Yes, baked half-cooked onion is usually peeled before baking or before serving. If you bake it with the dry outer skin on, remove that papery skin before eating; it is tough and does not have the tender texture of the onion underneath.

How long does baked half-cooked onion keep in the fridge?

Baked half-cooked onion keeps for up to three days in the refrigerator when stored in a sealed container. Refrigerate it promptly after serving, and reheat only the portion you plan to eat.

Can you reheat baked half-cooked onion?

Yes, you can reheat baked half-cooked onion in the oven or microwave. Cover it to limit drying, and heat it just until warm; reheating it for too long can make the center fully soft and erase its half-cooked texture.

What goes well with baked half-cooked onion?

Baked half-cooked onion pairs well with grilled meat, roasted vegetables, and savory grain dishes. Its mild sweetness also works in sandwiches or salads, where it adds a softer, less sharp onion flavor than raw onion.

Is baked half-cooked onion the same as caramelized onion?

No, baked half-cooked onion is not the same as caramelized onion. It is cooked only until partly tender, leaving some bite, while caramelized onion is cooked much longer until deeply browned, soft, and sweet.

Does baked half-cooked onion cause gas?

It can: baked half-cooked onion may cause gas or bloating in people sensitive to onions. Baking softens its texture but does not remove all the fermentable carbohydrates that can trigger symptoms, so a smaller serving may be easier to tolerate.

Baked half-cooked onion Vitamins & Minerals

Vitamins

Vitamin C

5.76mg · 6% DV

0.1mg · 6% DV

Folate

15.2µg · 4% DV

0.04mg · 3% DV

Minerals

Manganese

0.1mg · 4% DV

Copper

0.03mg · 3% DV

Potassium ⭐

117mg · 3% DV

Phosphorus

23mg · 3% DV

Sodium

3.2mg · 0% DV

Baked half-cooked onion Glycemic Index

GLYCEMIC INDEX

Low

0 Low5570100

GLYCEMIC LOAD

1.1

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Baked half-cooked onion

To burn the 33 calories in 1 piece (medium) (80 g):

🚶

8min

Walking (5 km/h)

🏃

3min

Running (8 km/h)

🚴

4min

Cycling

🏊

4min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Baked half-cooked onion?

Baked half-cooked onion is a simple side made by roasting peeled onions until they soften but still hold their shape. It’s an easy home-cooking preparation rather than a dish tied to one particular region, and baking brings out the onion’s natural sweetness while giving the outside a little colour.

Serve it warm alongside grilled food, fish, grains or other roasted vegetables; it can also be folded into a salad once cooled. The texture should be tender with a slight bite, and the flavour lightly caramelised rather than sharp. It contributes fibre and vitamin C, with 41 calories per 100 g. Use just a little oil if you want to keep the side light, and finish with herbs or a squeeze of lemon.

How Nutritious Is Baked half-cooked onion?

Nutrient density

Medium

48/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

46/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Baked half-cooked onion Processed?

NOVA 2

Minimally Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Baked half-cooked onion Contain Allergens?

No known major allergens

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Baked half-cooked onion Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Baked half-cooked onion Fat Profile

SATURATED

0.02g

MONOUNSATURATED

0.01g

POLYUNSATURATED

0.02g

⚖️

Omega 6:3 ratio 2:1

Below the ideal 4:1 — a good omega balance.

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Baked half-cooked onion vs Red Pepper10 kcal more per 100 g

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Baked half-cooked onion vs Boiled Beetroot3 kcal fewer per 100 g

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 30, 2026

Baked half-cooked onion Calories

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Baked half-cooked onion Nutrition Facts

Baked half-cooked onion nutrition facts table.css-c5434f{font-weight:500;color:#979797;} · 1 piece (medium) (80 g)

How Many Calories in 1 Medium Baked half-cooked onion?

Frequently Asked Questions About Baked half-cooked onion

How do you make baked half-cooked onion?

Why bake an onion only halfway?

Which onions work best for baked half-cooked onion?

How do you stop baked half-cooked onion from burning on the outside?

Do you peel baked half-cooked onion before eating it?

How long does baked half-cooked onion keep in the fridge?

Can you reheat baked half-cooked onion?

What goes well with baked half-cooked onion?

Is baked half-cooked onion the same as caramelized onion?

Does baked half-cooked onion cause gas?

Baked half-cooked onion Vitamins & Minerals

Baked half-cooked onion Glycemic Index

How to Burn Off Baked half-cooked onion

What is Baked half-cooked onion?

How Nutritious Is Baked half-cooked onion?

Nutrient density

Satiety score

Is Baked half-cooked onion Processed?

Does Baked half-cooked onion Contain Allergens?

Which Diets Is Baked half-cooked onion Good For?

Baked half-cooked onion Fat Profile

Compare Baked half-cooked onion

Foods Similar to Baked half-cooked onion

Have another question about Baked half-cooked onion?

Baked half-cooked onion nutrition facts table · 1 piece (medium) (80 g)