Balsamic Vinaigrette

3/4 cup olive oil
1 T red wine vinegar
2 T balsamic vinegar
2 tsp shallot (opt)
1/2 tsp dried oregano
1/2 garlic clove, minced
1/2 tsp salt
1/4 tsp pepper
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Combine ingredients by whisking together, or in the food processor.