Sour Cream and Onion Smashed Potatoes

Bahan-bahan (6 porsi)

• 1 pound small to medium potatoes ((yukon or russet potatoes))
• 1 12 ounce beer
• sea salt and black pepper
• 1 stick (8 tablespoons) salted butter, cubed
• 3/4 cup sour cream
• 1/2 cup plain greek yogurt
• 1 tablespoon dried onion flakes
• 2 teaspoons garlic powder
• 1 cup fresh cilantro
• 1 cup fresh basil leaves
• 1/4 cup freshly chopped scallions
• 1 tablespoon lemon juice