It's too hot to turn on the oven, in case you were wondering! (A high of 90F today.) This recipe will proceed Cooking For Engineers style, because it's so simple... (Adapted from the Betty Crocker Cookbook.)
Preheat oven to 4ooF. Grease 12 muffin cups (or use muffin papers).
--> Beat for 30 seconds
3/4 c. milk
1/2 c. oil
1 c. chopped cranberries (frozen is fine)
1/2 c. chopped walnuts (optional)
1 t. orange extract
-->Stir into egg
2 c. flour, a combination of AP and whole wheat pastry (or whatever you've got)
3 t. baking powder
-->Stir into wet ingredients just until moistened, batter will be lumpy. Fill muffin cups half-full. Sprinkle tops with sugar, if desired (you desire).
Bake for 20 minutes, turning once. Betty Crocker rules that muffins should be golden brown, with a slightly-domed top and an irregular but not craggy texture. I think she would be proud. Serving suggestion for a perfect muffin: warm from the oven with a cold glass of milk or lemonade.