2 cups balsamic vinegar, boiled until reduced to 1 cup
1/4 cup thinly sliced red onion
Instructions:
In food processor, combine potatoes and shallots. Process using grater attachment until potatoes are grated and mixed well.
Transfer grated-potato mixture to medium bowl. Add egg; mix well. Stir in salt and pepper.
In large, nonstick sauté pan, heat olive oil. Working in batches, spoon 2 heaping tablespoons potato mixture into pan for each pancake. Press gently to flatten into circles (2-in. to 2 1/2-in. diameter). Cook over medium-high heat, turning several times, until pancakes are golden-brown on both sides. Drain on paper towels.