Heat oven to 350º F. Spray 12″ bundt pan or muffin tin with cooking spray.
If using bundt pan: Crumble 2 Tbsp. brown sugar into melted butter and sprinkle into bottom of prepared bundt pan. If making muffins, add topping last to filled muffin cups.
In a mixing bowl, mix all other ingredients (except blueberries) just until combined. Don’t overmix! Fold in blueberries. If using fresh blueberries, toss in a little flower before adding to batter to prevent streaks or blue cake.
Spoon batter into pan until 2/3 full. Bake for 20+/- minutes or until toothpick inserted in center comes out clean. Let cool in pan for 15 minutes. Serve warm with Beazley Blend coffee.