Wheat and Buckwheat Batter Bread

Ingredients

• 2 tsp / 10 ml granulated sugar
• 1 c / 250 ml warm water
• 2 tbsp / 30 ml active dry yeast
• 8 c / 2 L whole wheat flour
• 2 tbsp / 30 ml brown sugar, packed
• 1 c / 250 ml buckwheat flour
• 3 c / 750 ml warm water
• 1/2 c / 125 ml canola oil
• 2 tsp / 10 ml butter for brushing tops