Boston brown bread Recipe | Food Network UK

Ingredients

• Nonstick spray
• Boiling water
• 70g whole wheat flour
• 70g rye flour
• 70g cornmeal
• 1/2 tsp baking soda
• 1/2 tsp baking powder
• 1/2 tsp salt
• 1/2 tsp freshly ground allspice
• 170g molasses, by weight
• 240g buttermilk
• 1 tsp vanilla essence
• 1/2 tsp orange zest
• Special equipment: 2 empty (750g) metal cans