385 calories; 16.1 g fat; 8.7 g saturated fat; 194.2 mg cholesterol; 255.8 mg sodium; 51.2 g carbohydrate; 1.3 g fiber; 26.1 g sugar; 9 g protein
In a 12 – 14 ounce microwave-safe mug, melt butter. Stir in flour, sugar, egg, milk, vanilla and baking powder until well combined. Fold in blueberries.
Microwave for 90 seconds or until cake pulls away from the sides. Let cool 5 minutes before serving.