# Components:
→ Muffins
01 - 2 cups all-purpose flour
02 - 1/2 cup granulated sugar
03 - 1/4 cup packed light brown sugar
04 - 2 tsp baking powder
05 - 1/2 tsp baking soda
06 - 1/2 tsp salt
07 - 1 1/2 tsp ground cinnamon
08 - 2 large eggs
09 - 1/2 cup vegetable oil
10 - 1/2 cup plain Greek yogurt or sour cream
11 - 1/4 cup milk
12 - 1 tsp 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 tsp ground cinnamon
17 - 1/4 cup unsalted butter, melted
18 - Pinch of salt
# Directions:
01 - Preheat the oven to 375°F. Line a 12-cup muffin tin with paper liners or lightly grease the cups.
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 the wet ingredients into the dry ingredients and gently mix until just combined, avoiding overmixing.
05 - Fold the finely diced apples into the batter evenly.
06 - Divide the batter evenly among the muffin cups, filling each about three quarters full.
07 - In a small bowl, combine flour, brown sugar, cinnamon, and salt. Stir in melted butter until clumps form.
08 - Sprinkle the crumb topping evenly over each filled muffin cup.
09 - Bake for 20 to 22 minutes, until a toothpick inserted into the center comes out clean.
10 - Cool the muffins in the pan for 5 minutes, then transfer to a wire rack to cool completely.
