Cinnamon swirl cupcakes

Ingredients

• 1 and 2/3 cups (210g) all-purpose flour (spoon & leveled)
• 1/2 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 cup (1 stick or 115g) unsalted butter
• 1 and 1/2 cups (300g) granulated sugar, divided
• 1 large egg, at room temperature
• 1/4 cup (60g) yogurt or sour cream, at room temperature
• 3/4 cup (180ml) milk, at room temperature
• 1 Tablespoon pure vanilla extract
• 2 teaspoons ground cinnamon

Directions:

1. Preheat the oven to 350°F (177°C). Line a 12-cup muffin pan with cupcake liners.
2. In a medium bowl, whisk flour, baking powder, baking soda, and salt together. Set aside.
3. In a large microwave-safe bowl, melt butter in the microwave. Whisk in 1 cup of sugar. The mixture will be gritty.  Let it rest for a couple minutes to slightly cool down. Stir in egg, yogurt, milk, and vanilla extract until combined. Slowly mix in dry ingredients until no lumps remain. Batter will be thick.
4. In a small bowl, mix the remaining 1/2 cup of sugar and 2 teaspoons of cinnamon together. Set aside. Spoon 2 scant Tablespoons of cupcake batter into each cupcake liner. Top with 1 teaspoon of the cinnamon-sugar mixture. Top with 1 heaping Tablespoon of cupcake batter, until the cupcake liners are about 3/4 full. Some of the cinnamon-sugar filling from the center layer may peek through the top layer of batter. Top each cupcake with 1 more teaspoon of the cinnamon-sugar.
5. Bake the cupcakes for 19-21 minutes or until a toothpick inserted in the center comes out clean. Allow to cool completely before frosting.

4:19:19 - used applesauce instead of yogurt; added nutmeg and cardamom to swirl. Too much batter for 12 cups. Cream cheese icing

https://sallysbakingaddiction.com/snickerdoodle-cupcakes-cinnamon-swirl-frosting/