Parmesan Crab Bites

Bahan-bahan (8 porsi)

• 1 tablespoon melted butter
• 1 tablespoon all purpose flour
• ½ cup milk
• 1 tablespoon dry white wine
• ½ teaspoon salt
• ½ teaspoon onion powder
• 1 cup flaked crab meat ((fresh will be better than canned, but you can use either))
• 16 slices French bread ((baguette size is good))
• ½ cup shredded, fresh Parmesan