01 -
Set oven temperature to 350°F. Line a 12-cup muffin tin with paper liners or lightly grease each cavity.
02 -
Whisk all-purpose flour, graham cracker crumbs, granulated sugar, light brown sugar, baking powder, baking soda, and salt in a large bowl until evenly combined.
03 -
In a separate bowl, whisk eggs, whole milk, Greek yogurt, melted butter, and vanilla extract until smooth and homogenous.
04 -
Pour wet ingredients into dry and stir gently until just combined, taking care not to overmix to ensure a tender crumb.
05 -
Incorporate semisweet chocolate chips and mini marshmallows into the batter using a spatula.
06 -
Spoon batter evenly into muffin cups, filling about three-quarters full. Top with additional mini marshmallows and crushed graham crackers.
07 -
Bake in the preheated oven for 18 to 22 minutes, or until a toothpick inserted near the center (avoiding marshmallow pockets) comes out clean.
08 -
Allow muffins to cool for 5 minutes in the tin before transferring to a wire rack to cool completely.
09 -
For a toasted marshmallow effect, briefly broil muffins on high for 1 to 2 minutes post-baking, monitoring carefully to avoid burning.