Pierogies Piccata - Mrs. T's Pierogies

Ingredients

• 1 box Garlic & Parmesan or your favorite variety of Mrs. T's® Pierogies
• 1 tablespoon extra-virgin olive oil
• 2 tablespoons diced Spanish or yellow onion
• 1 teaspoon garlic, finely chopped
• 1/3 cup dry white wine
• 2 tablespoons unsalted butter, divided
• 2 teaspoons all-purpose flour
• 2 cups chicken stock
• 1 tablespoon vegetable oil
• 1/2 cup cherry tomatoes, halved
• 2 tablespoons brined capers, drained and rinsed
• 1 teaspoon caper berries, halved (optional)
• 1 teaspoon green olives (such as castelvetrano), sliced
• 1 tablespoon flat leaf parsley, chopped