Rhubarb Bread

Ingredients

• 1-1/2 cups brown sugar, packed
• 2/3 cup canola oil
• 1 large egg
• 1 cup buttermilk
• 1 tsp salt
• 1 tsp baking soda
• 1 tsp vanilla extract
• 2-1/2 cups all-purpose flour
• 2 cups diced rhubarb
• 1/2 cup chopped walnuts or almonds
• 1 tbsp butter, softened
• 1/4 cup granulated sugar