Step 1

Preheat the oven to 350°F. Start by making the crumb mixture. In a medium bowl whisk together the all-purpose flour, brown sugar, and cinnamon. Then add the cubed cold butter to the bowl. Combine the butter and the flour mixture together with a fork, pastry cutter, or clean hands. Once the mixture is well combined and crumbly, set it to the side.

Step 2

Next wash, peel, and remove the core from the apples. Dice the apples into small cubes. I like to first slice the apples, then cut them into strips, then dice them into small cubes. Set the diced apples to the side.

Step 3

Now in a large bowl add the dry ingredients for the muffins (all-purpose flour, baking powder, baking soda, salt, cinnamon, and nutmeg). Whisk together until combined.

Step 4

In a separate bowl combine the wet ingredients together (brown sugar, white sugar, plain yogurt, applesauce, oil, eggs, and vanilla extract. Mix together until well combined.

Step 5

Add the dry ingredients to the same bowl as the wet ingredients. Stir together until just combined. Be careful not to overmix at this point.

Step 6

Add the diced apples to the bowl and fold them into the batter until just combined.

Step 7

Divide the batter between ten greased or lined muffin wells (I used butter to grease my muffin wells really well).

Step 8

Now divide and top each muffin with the streusel crumble mixture.

Step 9

Bake the muffins in the preheated oven for 26-28 minutes or until golden brown and a toothpick inserted comes out clean. Allow the muffins to cool for about 5 minutes, then carefully loosen the edges with a knife and transfer the muffins to a wire rack to finish cooling. Enjoy!