Preheat oven to 350 degrees. Grease 12 muffin cups. In large bowl mix together flour, baking powder and sugar. Cut in butter as for pastry until it is in small pea-size pieces. In small bowl mix egg, vanilla and cream then add all at once to flour mixture. Stir with spoon until blended. Gently mix in strawberries. Spoon into muffin cups and bake for about 25 minutes. Cool completely in pan before removing. Sprinkle with confectioners sugar to serve.