Preheat oven to 400 degrees F (200 degrees C). Grease or line 12 muffin cups. In a large bowl, cream together butter, sugar, honey, eggs and salt. Mix in flour, cornmeal and baking powder; blend thoroughly. Stir in milk and corn. Pour or spoon batter into prepared muffin cups. Bake in preheated oven for 20 to 25 minutes, or until a toothpick inserted into center of a muffin comes out clean.