Baked Glazed Donuts

Ingredients

• 2 cups cake flour (see Chef’s Note below)
• 3/4 cup sugar
• 1 tsp cinnamon
• 1/2 tsp nutmeg
• 1 & 1/2 tsp baking powder
• 1/4 tsp baking soda
• 1/2 tsp salt
• 3/4 cup low-fat buttermilk, at room temperature
• 2 eggs, lightly beaten
• 2 tbsp unsalted butter, melted
• 2 tsp vanilla extract
• 2 cups confectioners’ sugar
• 3 tbsp unsalted butter, melted and slightly cooled
• 3–4 tbsp heavy cream
• 1 tsp pure vanilla extract
• pinch salt
• 1–2 drops red food coloring
• for garnish: rainbow sprinkles*