Prep Time 10 minutes mins
Cook Time 20 minutes mins
Total Time 30 minutes mins
Don't overmix — lumps are fine and key to tender muffins. Use frozen blueberries straight from frozen so they don't bleed, and toss them in a teaspoon of flour to keep them from sinking. Starting at 400°F gives bakery-style domed tops. Store airtight for 3 days or freeze for 2 months.