01 -
Dig in right away or stash the finished Fudge Rounds in a sealed container. They'll keep fine on your counter for a day, in the fridge for about five days, or frozen up to a month. Chilling them makes them extra fudgy.
02 -
Spread or pipe the filling onto the bottoms of half your cookies. Pop the rest on top to make sandwiches—gently press so they stick together.
03 -
Mix up unsalted butter in your (clean!) stand mixer bowl with the paddle until it's smooth. Toss in sifted cocoa and powdered sugar, then beat until it looks super fluffy—scrape as needed. Now pour in the warm water and vanilla, and beat a bit longer until it gets light and whipped.
04 -
Pop your chocolate chips and oil in a microwaveable bowl. Heat for 15 seconds at a time and stir each time, until silky. Drizzle or pipe it over every cookie, then chill them half an hour so the chocolate sets.
05 -
Move baking sheets onto racks to cool. After a few minutes, slide the cookies off so they can finish cooling on their own. Don’t worry if they flatten out—that’s what you want.
06 -
Scoop generous dough balls (about 1.5 tablespoons each) onto the sheets you prepped. Bake for 8 to 9 minutes—look for puffy middles and edges that are set.
07 -
Slowly mix the dry stuff into your wet bowl with the mixer running low. Mix until just combined—you want a soft, slightly sticky dough. Don’t overdo it.
08 -
Whisk together all your flour, cocoa, baking soda, cornstarch, and salt in a new bowl. Done.
09 -
Beat the butter and sugar with your stand mixer (use the paddle) on medium-high until light and fluffy—stop to scrape the bowl when you need. After a couple minutes, drop in the egg, corn syrup, and vanilla. Mix until everything’s together.
10 -
Set your oven to 175°C and get two baking sheets lined with parchment ready to go.