Best Blueberry Muffins from Cooks Illustrated Recipe - (4.6/5)

Ingredients

• For the Topping-
• 1/3 cup sugar
• 1 1/2 tsp finely grated lemon zest from 1 lemon
• For the Muffins-
• 2 cups fresh blueberries
• 1 1/8 cups sugar, plus 1 tsp sugar
• 2 1/2 cups unbleached all-purpose flour
• 2 1/2 tsp baking powder
• 1 tsp salt
• 2 large eggs
• 4 tbsp (1/2 stick) unsalted butter, melted and cooled slightly
• 1/4 cup vegetable oil
• 1 cup buttermilk
• 1 1/2 tsp vanilla extract