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Export 9 ingredients for grocery delivery
Step 1
Bring a large pot of salted water to a boil.
Step 2
In a large bowl, combine mustard powder and 2 tablespoons of very hot water; mix well. Let stand for 5 minutes to bloom. Add oil, shallot, rice vinegar, ginger, sugar and garlic, and season with salt and pepper. Whisk until smooth, then stir in scallions.
Step 3
Once the water is boiling, add the green beans and blanch them until crisp-tender, about 2 minutes. Drain and transfer to the large bowl. Season with salt and pepper, and toss until evenly coated in the dressing. Let cool, stirring occasionally, about 10 minutes.
Step 4
Transfer beans to a serving bowl or platter. Serve at room temperature or chilled, and top with the pecans.