Instructions: Stir together 1/2 cup sugar, oil, oatmeal, egg, buttermilk and zest until well mixed. Add flour, baking soda, salt and plums and stir well.

Spoon batter into greased or paper-lined muffin cups, about 7/8 full. Sprinkle tops with remaining sugar.

Bake at 375 degrees until well-browned, about 25 minutes. Cool on wire rack 10 minutes; remove from tins.

Serve warm or cool completely. (Can be made ahead and reheated in 300-degree oven 10 minutes or in microwave in few-second increments until just warmed through.)

This recipe yields 6 muffins.

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