1. Position the rack in the center of the oven and preheat the
oven to 400°F. To prepare the muffin tins, spray the indentations
and the rims around them with nonstick spray, or line the indentations
with paper muffin cups. If using silicon muffin tins, spray as directed,
then place the tins on a baking sheet.
2. Whisk the flour, graham cracker crumbs, sugar, baking powder,
baking soda, and salt in a medium bowl until well blended. Set aside.
3. In a large bowl, whisk the egg until lightly beaten, then whisk
in the yogurt until smooth. Whisk in the milk, melted butter, and
vanilla extract. Using a wooden spoon, stir in the chocolate chips
and mini marshmallows, then stir in the prepared flour mixture until
the chips and marshmallows are evenly distributed in the batter.
Do not overmix.
4. Fill the prepared tins three-quarters full. Use additional
greased tins or small, ovensafe, greased ramekins for any leftover
batter, or reserve the batter for a second baking. Bake for 20 minutes,
or until the muffins have firm, rounded, lightly browned tops. A
toothpick inserted in the center of one muffin should come out with
a few moist crumbs attached, provided it doesn't hit a melted chocolate
chip and come out too gooey to tell.
5. Set the pan on a wire rack to cool for 10 minutes. Gently tip
each muffin to one side to make sure it isn't stuck. If one is,
gently rock it back and forth to release it from the tin. Cool the
muffins for 5 minutes more on the rack before serving. If storing
or freezing them, cool them completely before sealing in an airtight
container or in freezer-safe plastic bags. The muffins will stay
fresh for up to 2 days at room temperature or up to 2 months in
Note: 8 whole graham crackers crushed in a food processor fitted
with the chopping blade yield about 1 cup of crumbs.
Chocolate Iced S'mores Muffins: Top the cooled muffins with Chocolate
Icing (page 223).
Peanut S'mores Muffins: Reduce the chocolate chips to 1/3 cup.
Add 1/3 cup chopped, roasted, unsalted peanuts with the remaining
Rainbow S'mores Muffins: Substitute M&M candies for the chocolate
White Chocolate Chip S'mores Muffins: Substitute white chocolate
chips for the semisweet chocolate chips.