Nostalgic, soda-shop style ice cream sandwiches featuring dark, chewy chocolate wafers made with brown butter and a hint of malt, perfectly designed to stay soft when frozen.
2quartsvanilla ice creamstore bought or homemade (1.9 L)
Instructions
Brown the Butter, Then Build the Batter
Set your oven rack to the middle position and heat the oven to 350°F (175℃). Line two rimmed baking sheets with parchment paper.
In a skillet, brown the butter until it smells nutty and toasted. Let it cool back to room temperature so it can be creamed properly.
Cream the cooled brown butter with granulated sugar, brown sugar, vanilla, espresso powder, salt, baking powder, and baking soda on medium speed for about 2 minutes until light and fluffy.
Add the egg yolks one at a time while mixing on medium speed, scraping the bowl to ensure the mixture stays silky.
On low speed, mix in the flour and cocoa for 1 to 2 minutes until a thick, dark paste forms and no dry streaks remain.
Slowly drizzle in the hot coffee on low speed, stopping halfway to scrape the bowl, until you have a smooth, glossy batter.
Spread Thin and Bake for Chewy Wafers
Divide the batter evenly between the two prepared sheets and spread it into a thin, even layer using an offset spatula.
Tap each sheet pan firmly on the counter to remove air bubbles. Bake one sheet at a time for 7 to 10 minutes until the surface is puffed and the wafer feels set.
Cool on a wire rack for 30 minutes, then chill the wafers in the refrigerator or freezer for another 30 minutes until firm.
Chill, Slab-Stack, and Seal
Soften the ice cream in the refrigerator for about 30 minutes until spreadable. Line a 9x13-inch baking pan with parchment, leaving a 4-inch overhang.
Trim the cooled wafers into 8 3/4-inch by 12 3/4-inch rectangles. Place one wafer shiny-side down in the pan, patching any cracks with scraps.
Spread the softened ice cream into an even layer over the wafer, pushing into the corners. Place the second wafer shiny-side up on top.
Cover and freeze the whole slab for at least 12 hours until solid.
Cut Clean Rectangles
Lift the slab out using the parchment overhang. Using a knife warmed under hot water, cut the slab into twelve 4 1/4-inch by 2 1/2-inch rectangles.
Wipe the blade with a hot, wet towel between every cut to ensure clean, professional edges.
Notes
Texture Tip: For a classic look, poke a grid of holes in the top wafer with a skewer before the final freeze.Storage Tip: Wrap each sandwich in plastic wrap then foil, and store in an airtight container for up to 3 weeks to prevent freezer burn.Pro Tip: Let the sandwiches rest in the freezer for 24 hours after assembly; this ripening time allows the wafer to soften into the perfect texture.Nutrition information is estimated based on common ingredients and serving sizes and may vary.