Crackled-topped Rhubarb Coffee Cake Recipe | Vegetarian Food from USA

Ingredients

• 2 cups all-purpose flour
• 1 cup granulated sugar
• 4 tsp baking powder
• 1 tsp ground cinnamon
• 0.5 tsp salt
• 1 large egg
• 1 cup buttermilk
• 0.25 cup vegetable oil, preferably canola oil
• 2 tsp pure vanilla extract
• 0.5 lb (227 g) (2 cups) rhubarb, trimmed and cut into 0.5 inch pieces
• 0.25 cup granulated sugar
• 0.5 tsp ground cinnamon