Peaches And Cream Muffins

2 cups all-purpose flour
¼ cup granulated sugar
2 tsp. baking powder
1 tsp. baking soda
4 tbsp. melted butter
½ cup low-fat sour cream
1 egg, lightly beaten
2 cups peeled and chopped peaches
1 tbsp. brown sugar
1 tbsp. granulated sugar
½ tsp. cinnamon

Preheat oven to 400º F. Mix first four ingredients in a large bowl. Blend in butter, sour cream and egg. Fold in peaches. Pour into 12 lined or greased muffin cups. Combine last three ingredients, and sprinkle over muffin tops. Bake for 12-15 minutes, or until golden brown. Remove onto wire rack to cool, or serve warm.