Spinach Salad with Warm Shitakes Bacon and Shallots - The Blood Sugar Diet by Michael Mosley

Ingredients

• 1 medium shallot, thinly sliced
• ¼ cup white wine vinegar
• ¼ teaspoon crushed red chile flakes
• Kosher salt
• 8 ounces thick-cut bacon, cut into ½-inch pieces
• 1 pound shiitake mushrooms, stemmed, large caps torn into 1-inch pieces, small caps left whole
• 1 garlic clove, smashed
• Freshly ground black pepper
• ½ cup buttermilk or yogurt
• ½ cup sour cream (or more yogurt)
• ¼ cup mayonnaise
• 1 tablespoon fresh lemon juice
• ½ teaspoon garlic powder
• ½ teaspoon onion powder
• ¼ cup finely chopped mixed herbs, such as basil, chives, and/or dill
• 2 large bunches mature spinach, stemmed, torn into 2-inch pieces