Potato and Rainbow Chard Soup - Potato Goodness

Ingredients

• 2 to 3 Tablespoons olive oil
• 1 small yellow onion, diced
• ½ teaspoon crushed red pepper flakes
• salt and black pepper
• 2 cloves garlic, minced
• 1 bunch rainbow chard, cut into ½-inch pieces (including stems)
• 1 cup white wine, such as chardonnay
• 4 cups diced red- and white-skinned potatoes
• 1 quart unsalted chicken or vegetable stock