• Preheat Your Oven: Begin by preheating your oven to 350°F. Prepare your muffin tin by greasing it or lining it with paper liners.
• Combine Dry Ingredients: In a large mixing bowl, whisk together flour, sugar, baking powder, salt, and cinnamon.
• Prepare Wet Ingredients: In another bowl, beat the eggs then add the oil, and milk. Mix until well combined.
• Mix Wet and Dry Ingredients: Pour the wet ingredients into the dry ingredients and stir until just combined. Fold in the chopped apples gently.

To make Streusel Crumb Topping

• Prepare Streusel Topping: In a small bowl, combine flour, sugar, cold butter pieces, and cinnamon. Use a fork or your fingers to create a crumbly texture.

Baking the Muffins

• Fill Muffin Cups: Spoon the muffin batter into the prepared muffin tin, filling each cup about two-thirds full.
• Add Streusel Topping: Sprinkle the streusel topping evenly over the muffins, adding that perfect crunch.
• Bake: Bake in the preheated oven for about 20-25 minutes or until a toothpick inserted into the center of a muffin comes out clean.
• Cool and Enjoy: Allow the muffins to cool in the pan for a few minutes, then transfer them to a wire rack to cool completely.