# Ingredients:
→ Muffins
01 - 2 cups all-purpose flour
02 - 1/2 cup granulated sugar
03 - 1/4 cup packed light brown sugar
04 - 2 teaspoons baking powder
05 - 1/2 teaspoon baking soda
06 - 1/2 teaspoon salt
07 - 1 1/2 teaspoons ground cinnamon
08 - 2 large eggs
09 - 1/2 cup vegetable oil
10 - 1/2 cup plain Greek yogurt
11 - 1/4 cup milk
12 - 1 teaspoon vanilla extract
13 - 2 cups peeled, cored, and finely diced apples
→ Crumb Topping
14 - 1/2 cup all-purpose flour
15 - 1/3 cup packed light brown sugar
16 - 1/2 teaspoon ground cinnamon
17 - 1/4 cup unsalted butter, melted
18 - Pinch of salt
# Instructions:
01 - Preheat the oven to 375°F. Line a 12-cup muffin tin with paper liners or grease lightly.
02 - In a large bowl, whisk together flour, granulated sugar, brown sugar, baking powder, baking soda, salt, and cinnamon.
03 - In a separate bowl, whisk eggs, vegetable oil, Greek yogurt, milk, and vanilla extract until smooth.
04 - Pour wet ingredients into the dry mixture and combine gently until just incorporated, avoiding overmixing.
05 - Fold diced apples into the batter carefully.
06 - Distribute the batter evenly into the muffin cups, filling each to approximately three-quarters full.
07 - In a small bowl, mix flour, brown sugar, cinnamon, and salt. Stir in melted butter until crumbly clumps form.
08 - Sprinkle the crumb mixture evenly over each filled muffin cup.
09 - Bake for 20 to 22 minutes until a toothpick inserted comes out clean.
10 - Allow muffins to cool in the pan for 5 minutes before transferring to a wire rack to cool completely.
