Preheat your oven to 350°F (175°C) and line a standard muffin pan with paper liners.

In a large mixing bowl, combine the large eggs, granulated sugar, Greek yogurt, vegetable oil, and vanilla extract. Whisk until smooth.

In a separate bowl, mix together the all-purpose flour, baking powder, salt, ground nutmeg, and ground cinnamon.

Gently fold the wet mixture into the bowl of dry ingredients, combining without overmixing.

Spoon the batter into muffin liners, filling each about halfway, add chopped apples, and sprinkle streusel topping.

In a medium bowl, mix flour, light brown sugar, ground cinnamon, and melted butter until crumbly. Chill for 10 minutes.

Bake for about 20 minutes, or until a toothpick comes out clean. Enjoy the aroma!

Let the muffins cool in the pan for about 5 minutes before transferring to a wire rack. Drizzle glaze if desired.