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Ingredients
- 1 pound small fresh mushrooms
- 1 small onion, thinly sliced
- 1/3 cup white wine vinegar
- 1/3 cup canola oil
- 1 teaspoon salt
- 1 teaspoon ground mustard
Preparation
Step 1
In a large saucepan, combine all ingredients. Bring to a boil over medium-high heat. Cook, uncovered, for 6 minutes, stirring once. Cool to room temperature. Transfer to a large bowl; cover and refrigerate overnight. Yield: 3 cups.