Preheat oven to 220 degrees C. Grease muffin cups or line with paper patty cups.
Stir together flour, wheatgerm, baking powder, salt and brown sugar. In a separate bowl, mix together butter, egg and buttermilk. Stir milk mixture into dry ingredients; mix just until combined. Fill prepared muffin cups half full with batter. Make a depression in the centre of each muffin and drop in 1 teaspoon of jam. Cover jam with additional batter.