Moist and cinnamon-swirled muffins topped with a golden brown sugar streusel — all the flavor of coffee cake in a handheld form.
Muffins
1½ cups all-purpose flour
1½ tsp baking powder
¼ tsp baking soda
½ tsp salt
1 tsp cinnamon
½ cup melted butter
½ cup granulated sugar
¼ cup brown sugar
2 eggs
½ cup sour cream or Greek yogurt
1½ tsp vanilla extract
Streusel Topping
½ cup flour
⅓ cup brown sugar
1 tsp cinnamon
¼ cup cold butter, cubed
Cinnamon Swirl (Optional)
¼ cup brown sugar
1 tsp cinnamon
Optional Glaze
½ cup powdered sugar
1–2 tsp milk
½ tsp vanilla extract
Preheat oven to 375°F. Line or grease a 12-cup muffin tin.
Mix streusel topping ingredients until crumbly; chill.
Mix cinnamon swirl and set aside.
In one bowl, whisk flour, baking powder, soda, salt, cinnamon.
In another bowl, whisk melted butter, sugars, eggs, sour cream, and vanilla.
Combine wet and dry ingredients without overmixing.
Fill muffin cups halfway. Add cinnamon swirl. Top with more batter and streusel.
Bake 18–22 minutes, or until a toothpick comes out clean.
Cool and drizzle with glaze if desired.
Freeze muffins up to 2 months.
Add chopped pecans or fruit for variation.
Skip glaze for a less sweet version