How Much Red Onion to Substitute for Green Onion
Works for sauteing, frying, and slow cook. Red Onion keeps a similar flavor profile to Green Onion.
How much red onion equals one scallion?
Use 1/2 small red onion per scallion.
Health notes
Compared with Green Onion, Red Onion has: more calories (32 vs 27 per 100g in Green Onion) and more carbs (7.6g vs 5.7g per 100g in Green Onion).
Using red onion as a green onion substitute in pan-frying
Use 1/2 small red onion per scallion. Cooks down quickly; add near the end to preserve color.
Other cooking methods
- Frying
Use 1/2 small red onion per scallion. Slice thin; fries crisp with mild sweetness.
- Slow Cook
Use 1/2 small red onion per scallion. Caramelizes beautifully over hours; adds depth.
- Grilling
Use 1/2 small red onion per scallion. Char lightly; sweetness intensifies.
- Steaming
Use 1/2 small red onion per scallion. Stays firmer than sauteed; mild onion flavor.
- Raw Cold
Use 1/3 small red onion per scallion. Slice thin; sharper bite than green onion.
Methods to avoid (2)
- Baking
Not recommended: red onion is too wet and pungent for baking.
- Drinks
Not recommended: red onion is not used in beverages.
FAQ
- How much red onion equals one scallion?
1/2 small. For a typical recipe:
- 1 scallion → 0.5 small
- 2 scallions → 1 small
- 3 scallions → 1.5 small
- Can I substitute red onion for Green Onion in pan-frying?
Yes. Use 1/2 small red onion per scallion. Cooks down quickly; add near the end to preserve color. Not recommended: red onion is too wet and pungent for baking.
- How much red onion to use as a green onion substitute?
Stronger onion flavor and more sweetness; reduce salt slightly if the dish is already seasoned.
- How does the flavor change when substituting Red Onion for Green Onion?
Red onion keeps a similar flavor profile to green onion.
- How does texture change when substituting Red Onion for Green Onion?
Red onion firmer when raw, softer and more translucent when cooked. Loses the crisp snap of green onion.
- What else should I know about substituting Red Onion for Green Onion?
For soups, braises, sauteed dishes, and grilling. Expect deeper onion flavor, more sweetness when cooked, and purple color. Skip baking and drinks. Raw red onion is sharper and more pungent - use 1/3 the amount in salads and salsas. Won't give the fresh, bright bite of raw green onion tops.
- What still works when substituting Red Onion for Green Onion?
Red onion still works as a flavor carrier and acid.
- What won't work when substituting Red Onion for Green Onion?
Red onion won't work as a color and texture.
- How well does Red Onion match Green Onion?
Red onion is okay on structure, good on heat, and good on flavor.
- How does nutrition compare per 100g when substituting Red Onion for Green Onion?
Red onion is slightly higher in calories, is slightly lower in protein, and has about x6 fewer fat.
- How do the flavor notes shift when substituting Red Onion for Green Onion?
The flavor shifts toward more sweet and more pungent notes.