Name: Cinnamon Coffee Cake
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Yield: 9 people
Ingredients: 1 3/4 cup all-purpose flour; 1 cup granulated sugar; 1/4 teaspoon kosher salt; 2 teaspoons baking powder; 1/4 cup unsalted butter (cubed); 1 large egg (beaten); 3/4 cup whole milk; 1 teaspoon vanilla extract; 2 teaspoons ground cinnamon; 1/4 cup light brown sugar; 1/4 cup chopped walnuts (optional); 1 tablespoon water; 6 tablespoons powdered sugar