We Promise, This is Delicious - Simple, Roasted Onions From 1808
We Promise, This is Delicious - Simple, Roasted Onions From 1808 is a easy British recipe that serves 4. 145 calories per serving. Recipe by Townsends on YouTube.
Prep: 15 min | Cook: 40 min | Total: 1 hr
Cost: $2.35 total, $0.59 per serving
Ingredients
- 4 Yellow Onion (large‑medium, skins left on, washed)
- 1 tsp Kosher Salt (to taste, sprinkled after roasting)
- 2 tbsp Unsalted Butter (cold, cut into small pats for serving)
Instructions
Preheat Oven
Set the oven to 350°F (175°C) and allow it to preheat fully.
Time: PT10M
Temperature: 350°F
Prepare Onions
Rinse the onions under cold water, pat dry, and trim off the very bottom tip of each onion so the root end is flat for easier squeezing later. Do NOT peel the skins.
Time: PT5M
Roast Onions
Arrange the whole onions in a single layer on the baking sheet. Place the sheet in the oven and roast for 35–40 minutes, turning once halfway through for even browning.
Time: PT40M
Temperature: 350°F
Cool Slightly
Remove the baking sheet from the oven and let the onions rest for about 5 minutes, just enough to handle safely.
Time: PT5M
Extract & Finish
Using a knife, cut a very small slice off the bottom of each onion if needed, then gently squeeze the softened onion out of its skin into the serving dish. Slice the onion into wedges, sprinkle with salt, and add a pat of cold butter on top.
Time: PT5M
Nutrition Facts
- Calories
- 145
- Protein
- 1 g
- Carbohydrates
- 10 g
- Fat
- 11 g
- Fiber
- 2 g
Dietary info: Vegetarian, Gluten‑Free
Allergens: Milk
Ingredient Substitutions
- Instead of Yellow Onion: White onion, Sweet onion
- Instead of Kosher Salt: Sea salt, Table salt (use less)
- Instead of Unsalted Butter: Margarine, Olive oil drizzle
Equipment Needed
- Oven
- Baking Sheet
- Kitchen Tongs
- Knife
- Cutting Board
- Serving Dish
Critical Steps — Do Not Skip
- Do not peel the onions; keep skins on for protection.
- Roast at the same temperature and time as a baked potato (350°F for 35‑40 minutes).
- Allow a brief cooling period before handling to avoid burns.
- Squeeze the softened onion out of its skin rather than cutting it.
Chef Tips from the Video
- Choose yellow onions for their natural sweetness; they caramelize beautifully.
- A pinch of fresh cracked pepper adds a subtle heat without compromising the historic simplicity.
- Serve immediately with crusty bread to soak up the buttery juices.
Troubleshooting
Onion remains firm after the suggested cooking time.
Return the onion to the oven and continue roasting in 5‑minute increments until the interior is soft.
Onion skin tears and the interior falls apart.
Make sure the oven is fully preheated and keep the skins on; if the skin is already damaged, wrap the onion loosely in foil to retain moisture.
Onion becomes overly charred.
Lower the oven temperature to 325°F and check after 30 minutes.
Storage
Refrigerator: Store in an airtight container for up to 3 days.
Freezer: Not recommended; texture changes when frozen.
Room temperature: Can sit at room temperature for up to 1 hour after cooking.
Make-Ahead Tips
- Roast the onions up to 2 days ahead; reheat gently in a 300°F oven for 5‑10 minutes.
- Store the roasted onions without butter; add butter just before serving for best texture.
Frequently Asked Questions
What is the cultural significance and history of roasted whole onions in early 19th‑century British cuisine?
Roasted whole onions appear in early 19th‑century British cookbooks as a modest, frugal side that could be prepared when meat was scarce. They reflect the era’s shift toward simple, home‑cooked fare and were often served alongside roast potatoes or beetroots as a staple for laboring families.
What traditional regional variations of roasted whole onions exist within British cuisine?
In the north of England, onions were sometimes boiled first then roasted, while in the south they were often paired with butter and served with boiled potatoes. Some coastal regions added a splash of cider vinegar for brightness.
How were roasted whole onions traditionally served in 19th‑century England?
They were typically presented on a platter, squeezed out of their skins, lightly salted, and sometimes accompanied by a knob of cold butter. They could be eaten alone, with roast potatoes, or alongside beetroot dishes.
On what occasions or celebrations were roasted whole onions historically eaten in British culture?
Because they required only a few ingredients, roasted whole onions were a common everyday side but also appeared at modest harvest meals and winter gatherings when fresh produce was limited.
What other British dishes pair well with roasted whole onions?
They complement classic British staples such as roast beef, pork chops, baked potatoes, and stews like Lancashire hotpot. A simple green salad or pickled beetroot also balances the sweet onion flavor.
What makes roasted whole onions special or unique in British cuisine?
The dish showcases the natural sweetness of the onion without any heavy sauces, highlighting the historic British emphasis on flavor derived from basic, readily available ingredients.
What are the most common mistakes to avoid when making roasted whole onions?
Common errors include peeling the onions (which dries them out), baking at too high a temperature (causing burnt skins), and trying to squeeze the onion out while it’s still hot, which can lead to burns.
Why does this roasted onion recipe use the same temperature and time as a baked potato?
The original 1808 recipe gave no specific temperature, so the modern adaptation mirrors the well‑known baked‑potato method—350°F for 35‑40 minutes—ensuring the onion cooks evenly and becomes soft without over‑cooking.
Can I make roasted whole onions ahead of time and how should I store them?
Yes, you can roast them up to two days ahead. Store in an airtight container in the refrigerator and reheat gently before serving; add butter just before serving to retain its fresh flavor.
What texture and appearance should I look for when the roasted onions are done?
The skins should be lightly charred and the interior should feel very soft when pressed with tongs. When squeezed, the onion should pop out of its skin in one piece, retaining a tender, slightly caramelized texture.
What does the YouTube channel Townsends specialize in?
The YouTube channel Townsends specializes in exploring historical recipes, recreating dishes from old cookbooks, and demonstrating how to adapt them for modern home kitchens with clear, step‑by‑step tutorials.
How does the YouTube channel Townsends' approach to historical British cooking differ from other cooking channels?
Townsends focuses on authenticity, often reading directly from original 18th‑ and 19th‑century sources, while still providing practical modern equivalents for equipment and techniques. This blend of scholarship and accessibility sets it apart from channels that only modernize classic dishes.
Last updated: September 2, 2026
