I’ve started my family medicine rotation a couple of weeks ago. It’s been a lot of fun! The docs, NP, PA, and MAs I work with have been super nice and awesome teachers. I’ve been learning a lot and getting a ton of great experience. To try and make myself useful since I’m literally just a sponge, I have been baking like crazy. I’ve baked chocolate cake, cookies, keto brownies (those were interesting) and blueberry muffins so far. And naturally, since clinic ended early today, I decided to make s’mores cupcakes! I’ve been experimenting with icing (my fiance has been bugging me to make buttercream, so I made chocolate cake with vanilla buttercream peonies), and I thought I’d give marshmallow icing a try.

Here’s the recipe I used from lifeloveandsugar.com. I modified it a tiny bit as follows to make 16 cupcakes.
Ingredients:
Graham cracker crust
- 1 sleeve of graham crackers, crushed
- 4 tbsp granulated sugar
- 5 tbsp melted butter
Chocolate cupcakes
- 1 cup all purpose flour
- 1 cup granulated sugar
- 6 tbsp cocoa powder
- 1 tsp baking soda
- 1/2 tsp salt
- 1 egg
- 1/2 cup buttermilk
- 1/2 cup vegetable oil
- 1 tsp vanilla extract
- 1/2 cup boiling water
Marshmallow icing
- 4 egg whites
- 1 cup granulated sugar
- 1 tsp vanilla
- 1/2 tsp lemon juice (or cream of tartar if you have it)
- optional semisweet chocolate bits (I got mine from Trader Joe’s, they’ve got a nice jagged edge)
Directions
- Preheat oven to 320 F. Set up cupcake tin with liners.
- Mix crushed graham crackers with butter and sugar until evenly coated.
- Add the mixture to cupcake liners, push down to compact.
- Bake for 7 minutes. Then remove and let cool. Turn the oven down to 300 F.
- While you’re waiting for the crusts to bake, make your cupcake batter by mixing the dry ingredients (flour, sugar, cocoa, baking soda, and salt) in a large bowl.
- Add wet ingredients (vegetable oil, buttermilk, vanilla extract) and stir to combine.
- Once you’ve got a thick batter, add the 1/2 cup boiling water and gently mix until everything is well incorporated. The mixture should be fairly runny, but don’t worry!
- Fill cupcake liners over halfway.
- Bake at 300 for 17-20 minutes, or until cooked through the center.
- Remove from oven and let cool. (I like to put mine in the freezer because I’m impatient.)
- While the cupcakes are baking, make your marshmallow icing! Combine egg whites, sugar, lemon juice, and vanilla in a heat proof bowl.
- Heat using a double boiler or a pot of boiling water, whisking constantly until all the sugar is dissolved.
- Here, the original directions say to use a thermometer and wait until it gets to 140 or 160 — I just waited until all the sugar was dissolved and there were some bubbles forming from my whisking.
- Remove from heat and use a stand mixer/hand mixer to whisk. Start at a low speed, and gradually increase to high speed. Whisk for about 7-10 minutes, or until the mixture forms stiff peaks.
- Ice your cooled cupcakes and enjoy!
