Caramelized Onions:
Thinly slice enough yellow onions to equal 3 cups (2 medium onions). Heat 1/4 cup canola oil in a medium saute pan over medium heat. Stir in the onions and 1/4 teaspoon salt and cook for 4 minutes. Lower the heat to low and continue to cook the onions, stirring often, until they just turn light amber in color-20 to 30 minutes. Drain in a colander and store in the refrigerator until ready to use, for up to 4 days.