Tasty Apple Muffins with Crumb Topping
- 3/4 cup all-purpose flour
- 1/4 cup packed light brown sugar
- 2 tbsp granulated sugar
- 1 tsp ground cinnamon (optional)
- 4 tbsp unsalted butter, melted
- 2 cups all-purpose flour
- 1 1/2 tsp baking powder
- 1/2 tsp salt
- 1 tbsp ground cinnamon
- 1/2 tsp ground nutmeg (optional)
- 1/2 cup packed light brown sugar
- 1/4 cup granulated sugar
- 1/2 cup unsalted butter, room temperature
- 2 large eggs, room temperature
- 1/4 cup sour cream or greek yogurt, room temperature
- 1 tsp vanilla extract
- 1/2 cup milk, room temperature
- 1 1/2 cups chopped granny smith or honeycrisp apples