
Green Beans with Glazed Pearl Onions
Tender green beans tossed with caramelized balsamic pearl onions and a tangy mustard-vinegar sauce. A flavorful vegetable side dish perfect for entertaining.
15 mins
1 hr
1 hr 15 mins
Ingredients
Equipment Needed
- oven casserole bowl
- small nonreactive sauce pan
Ingredients
Equipment Needed
- oven casserole bowl
- small nonreactive sauce pan
Instructions
Prepare the Onions
- 1
Preheat oven and boil water
Preheat oven to 400°F. Put a pot of water on cooktop and bring to boil while working on the onion part of the recipe.
- 2
Make onion sauce
In small nonreactive sauce pan, combine 1/4 cup vinegar, butter, vegetable oil, thyme, 1 tsp. pepper, and 1/2 tsp salt. Stir over moderate low heat until butter is melted.
- 3
Thicken sauce
Add a sprinkling of flour to thicken the broth slightly.
- 4
Toss and bake onions
In an oven casserole bowl (Pyrex, cast iron, etc.) gently toss onions with broth. Place in oven and bake 35-40 minutes, stirring gently every 10 minutes or so until evenly browned.
Prepare the Beans
- 1
Blanch green beans
While onions are baking, blanch the fresh, cleaned green beans in the boiling water until just tender (about 4 minutes).
- 2
Cool beans
Dunk beans in cold running tap water, then drain.
- 3
Make mustard sauce
In small mixing bowl, combine olive oil, mustard, 1/4 cup vinegar, 1/2 tsp. salt, and 1/2 tsp. pepper.
Combine and Bake
- 1
Combine beans and onions
Add beans to onions in hot oven dish. Toss and level.
- 2
Add sauce
Pour mustard sauce over all. (Can refrigerate here if preparing a day ahead.)
- 3
Final bake
Cover with foil or lid, bake at 350°F for 20 minutes or until well heated.
Cook's Notes
The natural sugar in balsamic vinegar caramelizes the pearl onions with a dark glaze and adds a touch of sweetness to the mustard-vinegar sauce. Sugar-snap peas are a good substitute for green beans, but somewhat more expensive. Edamame peas also work well in this dish for added taste and texture. If using fresh pearl onions from the produce section, proper blanching and chilling is essential for easier preparation. Frozen pearl (or "tiny") onions work just as well. Can be prepared a day ahead and refrigerated before final baking.
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