Foryoueats: Cornmeal Blueberry Muffins

Ingredients

• Muffins:
• 2 cups fresh or thawed frozen wild blueberries
• 1 cup sugar
• 2 eggs
• 1/2 cup cornmeal
• 2 cups all purpose flour
• 2 1/2 tsps baking powder
• 1 tsp salt
• 5 tbls. unsalted butter, melted and cooled
• 1/4 cup canola oil
• 1 cup buttermilk
• 1 1/2 tsp vanilla extract
• finely grated zest of two medium lemon
• Streusel:
• 1/4 cup brown sugar
• 1/3 cup flour
• 1/2 tsp ground cinnamon
• 2 Tbls melted butter