Corn chowder

Name: Corn chowder
Ingredients: 25g butter; 1 small onion, finely chopped; 1 small garlic clove, crushed; 1 stick celery, chopped; 1 small green pepper, deseeded and cubed; 1 large potato, cubed; 600ml semi-skimmed milk; 300ml vegetable stock; 300g can sweetcorn, drained and rinsed; few drops Tabasco sauce; 2 tbsp chopped fresh chives, to serve; 2 thick slices bread, crusts removed and cubed; 2 garlic cloves, crushed; 2 tbsp olive oil