PREHEAT oven to 350 degrees.

COMBINE eggs, milk, yogurt, butter and vanilla.  In a medium bowl, stir together flour, baking powder, salt, lemon peel and sugar.  Mix yogurt mixture into dry ingredients.  In 2 to 3 strokes fold in raspberries.  Spoon into greased muffin cups.

BAKE at 350 degrees for 18 to 20 minutes or when top springs back when touched.  Serve plain or brush warm muffins with lemon glaze...

Lemon Glaze:
2 Tbsp lemon juice
1/2 cup powdered sugar
1 tsp lemon peel, finely grated

Combine ingredients and brush over warm muffins