Preheat oven to 375°F. Spray 8 large muffin cups (1-cup
capacity) or 18 standard muffin cups (1/3-cup capacity) with
nonstick spray. Whisk oats and next 9 ingredients in large bowl.
Add buttermilk, oil, egg, and vanilla; whisk to blend. Stir in 1/3
cup boiling water and let stand 5 minutes. Fold in blueberries (if
desired). Divide batter among prepared muffin cups.
|